首页 > 最新文献

Mineralogical Magazine最新文献

英文 中文
Quantitative evaluation of metamictisation of columbite-(Mn) from rare-element pegmatites using Raman spectroscopy 用拉曼光谱定量评价稀有元素伟晶岩中铌矿-(Mn)的变质作用
IF 2.7 3区 地球科学 Q2 MINERALOGY Pub Date : 2023-03-17 DOI: 10.1180/mgm.2023.18
Yuanyuan Hao, Yonggang Feng, Ting Liang, M. Brzozowski, Minghui Ju, Ruili Zhou, Yan Wang
Abstract Raman spectroscopic analysis was performed on columbite-(Mn) samples from a variety of previously studied rare-element pegmatites in Xinjiang, China, including the Jing'erquan No. 1 spodumene-subtype, Dakalasu No. 1 beryl–columbite-subtype and Kalu'an spodumene-subtype pegmatites, to quantify the relationship between the degree of metamictisation of columbite and Raman spectra. For all of the analysed columbites-(Mn), the position (p) and the full width at half maximum (FWHM) of the strongest band, A1g vibration mode related to the Nb/Ta–O bond, in the Raman spectra have a negative correlation. Combined with previously determined U–Pb isotopic data and major–minor-element data for the columbites-(Mn), the degree of metamictisation was quantified using the alpha-decay dose (D) and displacement per atom (dpa), both of which were corrected for effects caused by annealing. The results demonstrate that the columbite-(Mn) from Jing'erquan and Kalu'an are very crystalline, whereas those from Dakalasu are transitional between crystalline and amorphous stages. The main factor influencing the key parameters, i.e. band position and FWHM, of the strongest Raman band of columbite-(Mn) is metamictisation caused by radiation damage, whereas composition and crystal orientation have limited influence. A set of equations are established to quantify the degree of metamictisation of columbite using the band position and the full width at half maximum: FWHM = 8.309 × ln(aD) + 30.11 (R2 = 0.9861); p = –5.187 × ln(aD) + 867.09 (R2 = 0.966); FWHM = 8.1453 × ln(adpa) + 48.425 (R2 = 0.9822); and p = –5.078 × ln(adpa) + 855.67 (R2 = 0.9594).
摘要对新疆多种稀有元素伟晶岩中的铌矿(Mn)样品进行了拉曼光谱分析,以量化铌矿的变质作用程度与拉曼光谱之间的关系。对于所有分析的铌矿-(Mn),拉曼光谱中与Nb/Ta–O键相关的最强带A1g振动模式的位置(p)和半峰全宽(FWHM)具有负相关性。结合之前确定的铌矿的U–Pb同位素数据和主元素-次元素数据,使用α衰变剂量(D)和每原子位移(dpa)对变质作用的程度进行了量化,这两个数据都针对退火引起的影响进行了校正。结果表明,来自鄂尔多斯泉和卡鲁安的铌矿是非常结晶的,而来自达喀拉苏的铌矿则是在结晶和非结晶阶段之间过渡的。影响铌矿-(Mn)最强拉曼带的关键参数(即带位置和FWHM)的主要因素是辐射损伤引起的变质作用,而成分和晶体取向的影响有限。利用能带位置和半峰全宽,建立了一组方程来量化铌矿的变质作用程度:FWHM=8.309×ln(aD)+30.11(R2=0.9861);p=–5.187×ln(aD)+867.09(R2=0.966);FWHM=8.1453×ln(adpa)+48.425(R2=0.9822);ln(adpa)+855.67(R2=0.9594)。
{"title":"Quantitative evaluation of metamictisation of columbite-(Mn) from rare-element pegmatites using Raman spectroscopy","authors":"Yuanyuan Hao, Yonggang Feng, Ting Liang, M. Brzozowski, Minghui Ju, Ruili Zhou, Yan Wang","doi":"10.1180/mgm.2023.18","DOIUrl":"https://doi.org/10.1180/mgm.2023.18","url":null,"abstract":"Abstract Raman spectroscopic analysis was performed on columbite-(Mn) samples from a variety of previously studied rare-element pegmatites in Xinjiang, China, including the Jing'erquan No. 1 spodumene-subtype, Dakalasu No. 1 beryl–columbite-subtype and Kalu'an spodumene-subtype pegmatites, to quantify the relationship between the degree of metamictisation of columbite and Raman spectra. For all of the analysed columbites-(Mn), the position (p) and the full width at half maximum (FWHM) of the strongest band, A1g vibration mode related to the Nb/Ta–O bond, in the Raman spectra have a negative correlation. Combined with previously determined U–Pb isotopic data and major–minor-element data for the columbites-(Mn), the degree of metamictisation was quantified using the alpha-decay dose (D) and displacement per atom (dpa), both of which were corrected for effects caused by annealing. The results demonstrate that the columbite-(Mn) from Jing'erquan and Kalu'an are very crystalline, whereas those from Dakalasu are transitional between crystalline and amorphous stages. The main factor influencing the key parameters, i.e. band position and FWHM, of the strongest Raman band of columbite-(Mn) is metamictisation caused by radiation damage, whereas composition and crystal orientation have limited influence. A set of equations are established to quantify the degree of metamictisation of columbite using the band position and the full width at half maximum: FWHM = 8.309 × ln(aD) + 30.11 (R2 = 0.9861); p = –5.187 × ln(aD) + 867.09 (R2 = 0.966); FWHM = 8.1453 × ln(adpa) + 48.425 (R2 = 0.9822); and p = –5.078 × ln(adpa) + 855.67 (R2 = 0.9594).","PeriodicalId":18618,"journal":{"name":"Mineralogical Magazine","volume":"87 1","pages":"337 - 347"},"PeriodicalIF":2.7,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49252539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crystal-chemical characterisation and spectroscopy of fluorcarletonite and carletonite 氟碳榴石和碳榴石的晶体化学性质及光谱
IF 2.7 3区 地球科学 Q2 MINERALOGY Pub Date : 2023-03-03 DOI: 10.1180/mgm.2023.15
E. Kaneva, A. Bogdanov, T. Radomskaya, O. Belozerova, R. Shendrik
Abstract The minerals of carletonite group, fluorcarletonite, KNa4Ca4[Si8O18](CO3)4(F,OH)·H2O and carletonite, Na4Ca4[Si8O18](CO3)4(OH,F)·H2O, were investigated using a multi-method approach. A detailed comparative chemical study of the minerals was carried out using electron probe microanalysis and Fourier transform infrared spectroscopy. Using X-ray techniques and the results obtained, geometrical and distortion characteristics of the mineral structures are calculated and the successful crystal-structure refinement of these two natural compounds are given. Using spectroscopic and luminescence methods and ab initio calculations, it is shown that hole defects (CO3)•– are responsible for the colouration of the samples studied. Luminescence due to 5d–4f transition in Ce3+ ions is observed in both investigated compounds. Moreover, luminescence attributed to intrinsic luminescence, corresponding to the decay of electronic excitations of (CO3)2– complexes in the carletonite sample, is registered for the first time in phyllosilicates. An analysis of the optical absorption spectra and g-tensor values suggests that (CO3)•– defects in the crystal structure are localised in the C1 positions. Identification of these specific properties for these sheet silicates, with a two-dimensional infinite tetrahedral polymerisation, indicates that carletonites could be prospective materials for novel phosphors and luminophores.
摘要采用多种方法研究了碳钙石族矿物氟碳钙石KNa4Ca4[Si8O18](CO3)4(F,OH)·H2O和碳钙石Na4Ca4[Si8O18](CO3,OH)4(OH,F)·H2O。利用电子探针微量分析和傅立叶变换红外光谱对这些矿物进行了详细的对比化学研究。利用X射线技术和所获得的结果,计算了矿物结构的几何和畸变特征,并给出了这两种天然化合物晶体结构的成功细化。使用光谱和发光方法以及从头算计算表明,空穴缺陷(CO3)•–是所研究样品着色的原因。在两种研究的化合物中都观察到Ce3+离子中5d–4f跃迁引起的发光。此外,在层状硅酸盐中首次记录了归因于本征发光的发光,该发光对应于钙长石样品中(CO3)2–络合物的电子激发的衰减。对光学吸收光谱和g张量值的分析表明,晶体结构中的(CO3)•缺陷位于C1位置。通过二维无限四面体聚合,对这些片状硅酸盐的这些特定性质进行了鉴定,表明卡莱托石可能是新型磷光体和发光体的潜在材料。
{"title":"Crystal-chemical characterisation and spectroscopy of fluorcarletonite and carletonite","authors":"E. Kaneva, A. Bogdanov, T. Radomskaya, O. Belozerova, R. Shendrik","doi":"10.1180/mgm.2023.15","DOIUrl":"https://doi.org/10.1180/mgm.2023.15","url":null,"abstract":"Abstract The minerals of carletonite group, fluorcarletonite, KNa4Ca4[Si8O18](CO3)4(F,OH)·H2O and carletonite, Na4Ca4[Si8O18](CO3)4(OH,F)·H2O, were investigated using a multi-method approach. A detailed comparative chemical study of the minerals was carried out using electron probe microanalysis and Fourier transform infrared spectroscopy. Using X-ray techniques and the results obtained, geometrical and distortion characteristics of the mineral structures are calculated and the successful crystal-structure refinement of these two natural compounds are given. Using spectroscopic and luminescence methods and ab initio calculations, it is shown that hole defects (CO3)•– are responsible for the colouration of the samples studied. Luminescence due to 5d–4f transition in Ce3+ ions is observed in both investigated compounds. Moreover, luminescence attributed to intrinsic luminescence, corresponding to the decay of electronic excitations of (CO3)2– complexes in the carletonite sample, is registered for the first time in phyllosilicates. An analysis of the optical absorption spectra and g-tensor values suggests that (CO3)•– defects in the crystal structure are localised in the C1 positions. Identification of these specific properties for these sheet silicates, with a two-dimensional infinite tetrahedral polymerisation, indicates that carletonites could be prospective materials for novel phosphors and luminophores.","PeriodicalId":18618,"journal":{"name":"Mineralogical Magazine","volume":"87 1","pages":"356 - 368"},"PeriodicalIF":2.7,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45477448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Zincorietveldite, Zn(UO2)(SO4)2(H2O)5, the zinc analogue of rietveldite from the Blue Lizard mine, San Juan County, Utah, USA 锌铁矿,Zn(UO2)(SO4)2(H2O)5,来自美国犹他州圣胡安县蓝蜥蜴矿的锌类似物
IF 2.7 3区 地球科学 Q2 MINERALOGY Pub Date : 2023-03-03 DOI: 10.1180/mgm.2023.14
A. R. Kampf, T. Olds, J. Plášil, J. Marty
Abstract The new mineral zincorietveldite (IMA2022-070), Zn(UO2)(SO4)2(H2O)5, was found in the Blue Lizard mine, San Juan County, Utah, USA, where it occurs as yellow to orange–yellow blades in a secondary assemblage with bobcookite, coquimbite, halotrichite, libbyite, metavoltine, rhomboclase, römerite, tamarugite and voltaite. The streak is very pale yellow. Crystals are transparent with vitreous lustre. The tenacity is brittle, the Mohs hardness is ~2½ and the fracture is curved. Cleavage is excellent on {010}, good on {100} and fair on {001}. The mineral is easily soluble in H2O and has a calculated density of 3.376 g⋅cm–3. The mineral is optically biaxial (+) with α = 1.568(2), β = 1.577(2) and γ = 1.595(2); 2V = 70(1)°. Electron microprobe analyses provided (Zn0.720Mg0.109Fe0.091Mn0.046Co0.035)Σ1.00(UO2)(SO4)2(H2O)5. Zincorietveldite is orthorhombic, Pmn21, a = 12.8712(9), b = 8.3148(4), c = 11.2959(4) Å, V = 1208.90(11) Å3 and Z = 4. Zincorietveldite is the Zn analogue of rietveldite. The structural unit is a uranyl-sulfate chain that is also found in the structures of bobcookite, oldsite, oppenheimerite and svornostite.
摘要:在美国犹他州圣胡安县的Blue Lizard矿中发现了新矿物锌质velite(IMA2022-070),即Zn(UO2)(SO4)2(H2O)5,它以黄色至橙色-黄色的叶片形式存在于与方辉橄榄岩、方辉橄榄石、卤垂青岩、锂辉石、变伏线石、菱铁矿、römerite、tamarugite和voltaite的次生组合中。条纹是非常淡黄色的。晶体透明,有玻璃光泽。韧性是脆性的,莫氏硬度约为2½,断裂是弯曲的。Cleavage在{010}上表现出色,在{100}上表现良好,在{001}上表现尚可。该矿物易溶于H2O,计算密度为3.376 g·cm–3。该矿物具有光学双轴性(+),α=1.568(2),β=1.577(2;2V=70(1)°。提供电子探针分析(Zn0.720Mg0.109Fe0.091Mn0.046Co0.035)∑1.00(UO2)(SO4)2(H2O)5。锌铁矿是斜方晶系,Pmn21,a=12.8712(9),b=8.3148(4),c=11.2959(4)Å,V=1208.90(11)Å3和Z=4。锌锌矿是铁锌矿的锌类似物。该结构单元是硫酸铀酰链,也存在于方辉橄榄岩、老橄榄岩、奥本海默岩和svornostite的结构中。
{"title":"Zincorietveldite, Zn(UO2)(SO4)2(H2O)5, the zinc analogue of rietveldite from the Blue Lizard mine, San Juan County, Utah, USA","authors":"A. R. Kampf, T. Olds, J. Plášil, J. Marty","doi":"10.1180/mgm.2023.14","DOIUrl":"https://doi.org/10.1180/mgm.2023.14","url":null,"abstract":"Abstract The new mineral zincorietveldite (IMA2022-070), Zn(UO2)(SO4)2(H2O)5, was found in the Blue Lizard mine, San Juan County, Utah, USA, where it occurs as yellow to orange–yellow blades in a secondary assemblage with bobcookite, coquimbite, halotrichite, libbyite, metavoltine, rhomboclase, römerite, tamarugite and voltaite. The streak is very pale yellow. Crystals are transparent with vitreous lustre. The tenacity is brittle, the Mohs hardness is ~2½ and the fracture is curved. Cleavage is excellent on {010}, good on {100} and fair on {001}. The mineral is easily soluble in H2O and has a calculated density of 3.376 g⋅cm–3. The mineral is optically biaxial (+) with α = 1.568(2), β = 1.577(2) and γ = 1.595(2); 2V = 70(1)°. Electron microprobe analyses provided (Zn0.720Mg0.109Fe0.091Mn0.046Co0.035)Σ1.00(UO2)(SO4)2(H2O)5. Zincorietveldite is orthorhombic, Pmn21, a = 12.8712(9), b = 8.3148(4), c = 11.2959(4) Å, V = 1208.90(11) Å3 and Z = 4. Zincorietveldite is the Zn analogue of rietveldite. The structural unit is a uranyl-sulfate chain that is also found in the structures of bobcookite, oldsite, oppenheimerite and svornostite.","PeriodicalId":18618,"journal":{"name":"Mineralogical Magazine","volume":"87 1","pages":"528 - 533"},"PeriodicalIF":2.7,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49202251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Argentopolybasite, Ag16Sb2S11, a new member of the polybasite group 银多碱土,Ag16Sb2S11,多碱土族的新成员
IF 2.7 3区 地球科学 Q2 MINERALOGY Pub Date : 2023-02-17 DOI: 10.1180/mgm.2022.141
M. Števko, T. Mikuš, J. Sejkora, J. Plášil, E. Makovicky, Jozef Vlasáč, A. Kasatkin
Abstract The new mineral argentopolybasite, ideally Ag16Sb2S11, was found at the Kremnica Au–Ag epithermal deposit, Žiar nad Hronom Co., Banská Bystrica Region, Slovakia (type locality), Šibeničný vrch near Nová Baňa, Žarnovica Co., Banská Bystrica Region, Slovakia (cotype locality) and the Arykevaam epithermal Au–Ag deposit, Anadyr’ District, Chukotka Autonomous Okrug, Russian Federation (cotype locality). At the Kremnica deposit argentopolybasite was found as discrete, well-developed (pseudo)hexagonal tabular crystals up to 4 mm in size or as complex crystalline aggregates and groups up to 5 mm in size in cavities of quartz. It is associated with pyrargyrite, polybasite, stephanite, miargyrite, rozhdestvenskayaite-(Zn), argentotetrahedrite-(Zn), naumannite, gold and pyrite. Argentopolybasite is dark grey to black, with a black streak and metallic to opaque lustre. The Mohs hardness is ~3. It is brittle with no observable cleavage and with a conchoidal fracture. The calculated density is 6.403 g⋅cm–3. In reflected light, argentopolybasite is grey, with no observable bireflectance and very weak pleochroism. It shows moderate anisotropy in crossed polarisers with weak greenish and green–blue tints. The reflectance values for wavelengths recommended by the Commission on Ore Mineralogy of the IMA are (Rmin/Rmax, %): 30.3/31.0 (470 nm), 28.8/29.3 (546 nm), 28.1/28.6 (589 nm) and 27.4/27.8 (650 nm). The empirical formulae (based on 29 apfu) are, Kremnica: (Ag15.94Cu0.18)Σ16.12(Sb1.40As0.61)Σ2.01(S10.60Se0.25Cl0.03)Σ10.88, Nová Baňa: Ag16.30(Sb1.74As0.22)Σ1.96(S10.69Cl0.04)Σ10.73 and Arykevaam: (Ag15.54Cu0.38)Σ15.92(Sb1.56As0.51)Σ2.07S11.01. The ideal end-member formula for argentopolybasite is Ag16Sb2S11. Argentopolybasite is trigonal, space group P321, a = 15.0646(5) Å, c = 12.2552(5) Å, V = 2408.61(15) Å3 and Z = 2. The seven strongest powder X-ray diffraction lines are [dobs in Å, (I), hkl]: 12.169, (40), 001; 3.162, (100), 041; 3.045, (54), 004; 2.881, (45), 042; and 2.4256, (28), 421. The crystal structure of argentopolybasite from Kremnica, refined to Robs = 0.0741 for 2804 observed reflections, confirmed that the atomic arrangement is isotypic to that of the other members of the polybasite group and it is isostructural with argentopearceite.
摘要:在Kremnica Au–Ag浅成热液矿床中发现了新矿物银硼硅酸盐,理想情况下为Ag16Sb2S11。该矿床位于斯洛伐克BanskáBystrica地区的日亚尔纳德Hronom公司(类型位置)、NováBaõa附近的Šibeničnývrch、斯洛伐克BanskóBystriica地区的日亚诺维卡公司(同类型位置)和Chukotka自治区Anadyr’区的Arykevaam浅成热热液Au–银矿床,俄罗斯联邦(同类型地区)。在Kremnica矿床中,发现了尺寸达4毫米的离散、发育良好的(伪)六方片状晶体,或石英腔中尺寸达5毫米的复杂晶体聚集体和群。它与pyrgyrite、多碱石、stephanite、miargyrite、rozhdestvenskayaite-(Zn)、银四面体-(Zn。银多碱土为深灰色至黑色,具有黑色条纹和金属至不透明光泽。莫氏硬度约为3。它是脆性的,没有明显的解理和贝壳状断裂。计算出的密度为6.403 g·cm–3。在反射光中,银硼硅酸盐为灰色,没有可观察到的双反射性和非常弱的多色性。它在具有弱绿色和绿色-蓝色色调的交叉偏振片中显示出中等的各向异性。IMA矿石矿物学委员会建议的波长反射率值为(Rmin/Rmax,%):30.3/31.0(470 nm)、28.8/29.3(546 nm)、28.1/28.6(589 nm)和27.4/27.8(650 nm)。经验公式(基于29 apfu)为:Kremnica:(Ag15.94Cu0.18)∑16.12(Sb1.40As0.61)∑2.01(S10.60Se0.25Cl0.03)∑10.88,NováBaõa:Ag16.30(Sb1.74As0.22)∑1.96(S10.69Cl0.04)∑10.73和Arykevaam:(Ag15.54Cu0.38)∑15.92(Sb1.56As0.51)∑2.007S11.01。Ag16Sb2S11是银硼硅酸盐的理想端基分子式。Argentopolybasite是三角的,空间群P321,a=15.0646(5)Å,c=12.2552(5。最强的七条粉末X射线衍射线是[dobs inÅ,(I),hkl]:12.169,(40),001;3.162,(100),041;3.045,(54),004;2.881,(45),042;和2.4256,(28),421。Kremnica的银多碱土的晶体结构,在2804次观察到的反射中被细化为Robs=0.0741,证实了该原子排列与多碱土群的其他成员的原子排列是同型的,并且它与银多碱石是同构的。
{"title":"Argentopolybasite, Ag16Sb2S11, a new member of the polybasite group","authors":"M. Števko, T. Mikuš, J. Sejkora, J. Plášil, E. Makovicky, Jozef Vlasáč, A. Kasatkin","doi":"10.1180/mgm.2022.141","DOIUrl":"https://doi.org/10.1180/mgm.2022.141","url":null,"abstract":"Abstract The new mineral argentopolybasite, ideally Ag16Sb2S11, was found at the Kremnica Au–Ag epithermal deposit, Žiar nad Hronom Co., Banská Bystrica Region, Slovakia (type locality), Šibeničný vrch near Nová Baňa, Žarnovica Co., Banská Bystrica Region, Slovakia (cotype locality) and the Arykevaam epithermal Au–Ag deposit, Anadyr’ District, Chukotka Autonomous Okrug, Russian Federation (cotype locality). At the Kremnica deposit argentopolybasite was found as discrete, well-developed (pseudo)hexagonal tabular crystals up to 4 mm in size or as complex crystalline aggregates and groups up to 5 mm in size in cavities of quartz. It is associated with pyrargyrite, polybasite, stephanite, miargyrite, rozhdestvenskayaite-(Zn), argentotetrahedrite-(Zn), naumannite, gold and pyrite. Argentopolybasite is dark grey to black, with a black streak and metallic to opaque lustre. The Mohs hardness is ~3. It is brittle with no observable cleavage and with a conchoidal fracture. The calculated density is 6.403 g⋅cm–3. In reflected light, argentopolybasite is grey, with no observable bireflectance and very weak pleochroism. It shows moderate anisotropy in crossed polarisers with weak greenish and green–blue tints. The reflectance values for wavelengths recommended by the Commission on Ore Mineralogy of the IMA are (Rmin/Rmax, %): 30.3/31.0 (470 nm), 28.8/29.3 (546 nm), 28.1/28.6 (589 nm) and 27.4/27.8 (650 nm). The empirical formulae (based on 29 apfu) are, Kremnica: (Ag15.94Cu0.18)Σ16.12(Sb1.40As0.61)Σ2.01(S10.60Se0.25Cl0.03)Σ10.88, Nová Baňa: Ag16.30(Sb1.74As0.22)Σ1.96(S10.69Cl0.04)Σ10.73 and Arykevaam: (Ag15.54Cu0.38)Σ15.92(Sb1.56As0.51)Σ2.07S11.01. The ideal end-member formula for argentopolybasite is Ag16Sb2S11. Argentopolybasite is trigonal, space group P321, a = 15.0646(5) Å, c = 12.2552(5) Å, V = 2408.61(15) Å3 and Z = 2. The seven strongest powder X-ray diffraction lines are [dobs in Å, (I), hkl]: 12.169, (40), 001; 3.162, (100), 041; 3.045, (54), 004; 2.881, (45), 042; and 2.4256, (28), 421. The crystal structure of argentopolybasite from Kremnica, refined to Robs = 0.0741 for 2804 observed reflections, confirmed that the atomic arrangement is isotypic to that of the other members of the polybasite group and it is isostructural with argentopearceite.","PeriodicalId":18618,"journal":{"name":"Mineralogical Magazine","volume":"87 1","pages":"382 - 395"},"PeriodicalIF":2.7,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46861628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Newsletter 71 时事通讯71
IF 2.7 3区 地球科学 Q2 MINERALOGY Pub Date : 2023-02-16 DOI: 10.1180/mgm.2023.11
F. Bosi, R. Miyawaki, F. Hatert, M. Pasero, S. Mills
{"title":"Newsletter 71","authors":"F. Bosi, R. Miyawaki, F. Hatert, M. Pasero, S. Mills","doi":"10.1180/mgm.2023.11","DOIUrl":"https://doi.org/10.1180/mgm.2023.11","url":null,"abstract":"<jats:p>\u0000 </jats:p>","PeriodicalId":18618,"journal":{"name":"Mineralogical Magazine","volume":"87 1","pages":"332 - 335"},"PeriodicalIF":2.7,"publicationDate":"2023-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42762714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Focus or Neglect on Cognitive Impairment Following the History of Multiple Sclerosis. 关注或忽视多发性硬化病史后的认知障碍。
IF 1.6 3区 地球科学 Q2 MINERALOGY Pub Date : 2023-02-15 eCollection Date: 2023-03-01 DOI: 10.3390/neurosci4010008
Ugo Nocentini

Cognitive disorders are now considered an integral part of the picture of multiple sclerosis. If we trace the history of the accounts of this disease, from the early descriptions by Jean-Martin Charcot, the first to provide systematic characteristics of multiple sclerosis, to present-day accounts, reports of cognitive disturbances have demonstrated an alternating trend. Cognitive disturbances were identified in the beginning, quite clearly for the times. Then, for a long time, they were considered infrequent or attributed to other factors. Finally, since the 1980s, cognitive disturbances have been the subject of increasingly in-depth studies, and are currently assumed to be a very important consequence of multiple sclerosis. In this work, the history of the description of cognitive disorders of multiple sclerosis will be retraced by analyzing the possible reasons for the differences in attention they have received over time. It emerged from the analysis that, as in the case of other pathologies, various factors have influenced how cognitive disorders have been taken into consideration. Some of these factors are inherent to the very nature of the cognitive impairments present in multiple sclerosis; others are linked to historical periods, or to the different ways of approaching the analysis of the phenomena caused by a disease. The reflections made on these topics should, among other things, increase our awareness of how scientific investigation is invariably placed in the historical context in which it is carried out.

认知障碍现在被认为是多发性硬化症的一个组成部分。如果我们追溯这一疾病的历史,从让-马丁-沙尔科(Jean-Martin Charcot,第一个系统描述多发性硬化症特征的人)的早期描述到今天的描述,关于认知障碍的报告呈现出一种交替的趋势。认知障碍在一开始就被发现了,这在当时是非常明显的。然后,在很长一段时间里,人们认为认知障碍并不常见,或将其归咎于其他因素。最后,自 20 世纪 80 年代以来,认知障碍成为越来越多深入研究的主题,目前被认为是多发性硬化症的一个非常重要的后果。本文将通过分析多发性硬化症认知障碍在不同时期受到不同关注的可能原因,追溯多发性硬化症认知障碍的描述历史。分析结果表明,与其他病症的情况一样,各种因素对认知障碍的考虑方式产生了影响。其中一些因素是多发性硬化症认知障碍的固有性质所决定的;另一些因素则与历史时期或分析疾病现象的不同方法有关。对这些问题的思考,除其他外,应使我们进一步认识到科学研究是如何无一例外地置于其开展的历史背景中的。
{"title":"Focus or Neglect on Cognitive Impairment Following the History of Multiple Sclerosis.","authors":"Ugo Nocentini","doi":"10.3390/neurosci4010008","DOIUrl":"10.3390/neurosci4010008","url":null,"abstract":"<p><p>Cognitive disorders are now considered an integral part of the picture of multiple sclerosis. If we trace the history of the accounts of this disease, from the early descriptions by Jean-Martin Charcot, the first to provide systematic characteristics of multiple sclerosis, to present-day accounts, reports of cognitive disturbances have demonstrated an alternating trend. Cognitive disturbances were identified in the beginning, quite clearly for the times. Then, for a long time, they were considered infrequent or attributed to other factors. Finally, since the 1980s, cognitive disturbances have been the subject of increasingly in-depth studies, and are currently assumed to be a very important consequence of multiple sclerosis. In this work, the history of the description of cognitive disorders of multiple sclerosis will be retraced by analyzing the possible reasons for the differences in attention they have received over time. It emerged from the analysis that, as in the case of other pathologies, various factors have influenced how cognitive disorders have been taken into consideration. Some of these factors are inherent to the very nature of the cognitive impairments present in multiple sclerosis; others are linked to historical periods, or to the different ways of approaching the analysis of the phenomena caused by a disease. The reflections made on these topics should, among other things, increase our awareness of how scientific investigation is invariably placed in the historical context in which it is carried out.</p>","PeriodicalId":18618,"journal":{"name":"Mineralogical Magazine","volume":"61 1","pages":"0"},"PeriodicalIF":1.6,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11523701/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87934618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Botuobinskite and mirnyite, two new minerals of the crichtonite group included in Cr-pyrope xenocrysts from the Internatsionalnaya kimberlite 国际纳亚金伯利岩中铬-锡质异种结晶中发现的两种新矿物——菱白矿和菱白矿
IF 2.7 3区 地球科学 Q2 MINERALOGY Pub Date : 2023-02-10 DOI: 10.1180/mgm.2023.10
D. Rezvukhin, S. Rashchenko, I. Sharygin, V. Malkovets, T. Alifirova, L. Pautov, E. Nigmatulina, Y. Seryotkin
Abstract Two new mineral species of the crichtonite group: botuobinskite, ideally SrFe2+(Ti4+12Cr3+6)Mg2[O36(OH)2] and mirnyite, ideally SrZr(Ti4+12Cr3+6)Mg2O38, occur as inclusions in mantle-derived Cr-pyrope xenocrysts from the Internatsionalnaya kimberlite pipe, Mirny field, Siberian craton. Botuobinskite forms needle- and blade-like acicular crystals up to 1 mm in length and up to 30 μm in diameter, a large platy inclusion (700 × 700 × 80 μm) and roughly isometric grains (up to 80 μm). Mirnyite occurs as needle-and blade-like elongated inclusions (up to 1 mm). Both minerals are jet-black, opaque and exhibit a metallic lustre. In plane-polarised reflected light, botuobinskite and mirnyite are greyish-white with a weak brownish tint. Between crossed polars, the new species show distinct anisotropy in shades of bluish grey to greenish-brown. Neither bireflectance nor pleochroism is observed. Calculated densities for botuobinskite and mirnyite are 4.3582(5) and 4.3867(3) gm/cm3, respectively. The crystal structures of botuobinskite and mirnyite have been refined (R = 0.0316 and 0.0285, respectively) from single crystal X-ray diffraction data. The minerals are trigonal, crystallise in the space group R$bar{3}$ (No. 148) and are isostructural with other members of the crichtonite group. The unit cell parameters are a = 10.3644(8) Å, c = 20.6588(11) Å and V = 1921.9(2) Å3 for botuobinskite and a = 10.3734(8) Å, c = 20.6910 (12) Å and V = 1928.2(2) Å3 for mirnyite, with Z = 3 for both. The Raman spectra of the minerals show strong peaks at 133, 313 and 711 cm–1. Infrared spectroscopy data for botuobinskite indicates H–O stretching of the hydroxyl groups. Botuobinskite and mirnyite have been approved by the IMA–CNMNC under the numbers 2018-143a and 2018-144a, respectively. Botuobinskite and mirnyite are named after the Botuobinskaya exploration expedition and Mirny town, respectively. The minerals may be considered as crystal-chemical analogues of other crichtonite-group species occurring in the lithospheric mantle (i.e. loveringite, lindsleyite and mathiasite). Both species commonly occur in intimate association with Cr-pyrope as well as other peridotitic minerals and exert an important control on the partitioning of incompatible elements during mantle metasomatism.
摘要环纹石群的两种新矿物:botuobinskite,理想情况下为SrFe2+(Ti4+12Cr3+6)Mg2[O36(OH)2]和mirnyite,理想情况为SrZr(Ti4+12 Cr3+6。Botuobinskite形成针状和刀片状针状晶体,长度可达1 mm,直径可达30μm,一个大的片状夹杂物(700×700×80μm)和大致等距的晶粒(可达80微米)。菱铁矿以针状和刀片状细长夹杂物的形式出现(最多1毫米)。这两种矿物都是乌黑、不透明的,呈现出金属光泽。在平面偏振反射光中,博托宾闪长岩和镜铁矿呈灰白色,带淡褐色。在交叉极点之间,新物种表现出明显的蓝灰色到绿棕色的各向异性。既没有观察到双反射,也没有观察到多色性。botuobinskite和mirnyite的计算密度分别为4.3582(5)和4.3867(3)gm/cm3。根据单晶X射线衍射数据,对博妥宾闪长岩和镜铁矿的晶体结构进行了精细化处理(R分别为0.0316和0.0285)。这些矿物是三角的,在R$bar{3}$空间群(编号148)中结晶,并且与crichtonite群的其他成员同构。晶胞参数对于botuobinskite为a=10.3644(8)Å、c=20.6588(11)Å和V=192.9(2)Å3,对于mirnyite为a=10.3334(8)å、c=206910(12)Å以及V=192.2(2)å3,两者均为Z=3。矿物的拉曼光谱在133、313和711 cm–1处显示出强峰。botuobinskite的红外光谱数据表明羟基的H–O伸缩。Botuobinskite和mirnyite已分别获得IMA–CNMNC的批准,编号分别为2018-143a和2018-144a。博托宾斯基特和米尔尼岩分别以博托宾斯卡亚探险队和米尔尼镇命名。这些矿物可以被认为是岩石圈地幔中出现的其他环纹石群物种(即loveringte、lindsleyite和mathiasite)的晶体化学类似物。这两种矿物通常与铬黄铁矿以及其他橄榄岩矿物密切相关,并在地幔交代过程中对不相容元素的分配起着重要控制作用。
{"title":"Botuobinskite and mirnyite, two new minerals of the crichtonite group included in Cr-pyrope xenocrysts from the Internatsionalnaya kimberlite","authors":"D. Rezvukhin, S. Rashchenko, I. Sharygin, V. Malkovets, T. Alifirova, L. Pautov, E. Nigmatulina, Y. Seryotkin","doi":"10.1180/mgm.2023.10","DOIUrl":"https://doi.org/10.1180/mgm.2023.10","url":null,"abstract":"Abstract Two new mineral species of the crichtonite group: botuobinskite, ideally SrFe2+(Ti4+12Cr3+6)Mg2[O36(OH)2] and mirnyite, ideally SrZr(Ti4+12Cr3+6)Mg2O38, occur as inclusions in mantle-derived Cr-pyrope xenocrysts from the Internatsionalnaya kimberlite pipe, Mirny field, Siberian craton. Botuobinskite forms needle- and blade-like acicular crystals up to 1 mm in length and up to 30 μm in diameter, a large platy inclusion (700 × 700 × 80 μm) and roughly isometric grains (up to 80 μm). Mirnyite occurs as needle-and blade-like elongated inclusions (up to 1 mm). Both minerals are jet-black, opaque and exhibit a metallic lustre. In plane-polarised reflected light, botuobinskite and mirnyite are greyish-white with a weak brownish tint. Between crossed polars, the new species show distinct anisotropy in shades of bluish grey to greenish-brown. Neither bireflectance nor pleochroism is observed. Calculated densities for botuobinskite and mirnyite are 4.3582(5) and 4.3867(3) gm/cm3, respectively. The crystal structures of botuobinskite and mirnyite have been refined (R = 0.0316 and 0.0285, respectively) from single crystal X-ray diffraction data. The minerals are trigonal, crystallise in the space group R$bar{3}$ (No. 148) and are isostructural with other members of the crichtonite group. The unit cell parameters are a = 10.3644(8) Å, c = 20.6588(11) Å and V = 1921.9(2) Å3 for botuobinskite and a = 10.3734(8) Å, c = 20.6910 (12) Å and V = 1928.2(2) Å3 for mirnyite, with Z = 3 for both. The Raman spectra of the minerals show strong peaks at 133, 313 and 711 cm–1. Infrared spectroscopy data for botuobinskite indicates H–O stretching of the hydroxyl groups. Botuobinskite and mirnyite have been approved by the IMA–CNMNC under the numbers 2018-143a and 2018-144a, respectively. Botuobinskite and mirnyite are named after the Botuobinskaya exploration expedition and Mirny town, respectively. The minerals may be considered as crystal-chemical analogues of other crichtonite-group species occurring in the lithospheric mantle (i.e. loveringite, lindsleyite and mathiasite). Both species commonly occur in intimate association with Cr-pyrope as well as other peridotitic minerals and exert an important control on the partitioning of incompatible elements during mantle metasomatism.","PeriodicalId":18618,"journal":{"name":"Mineralogical Magazine","volume":"87 1","pages":"433 - 442"},"PeriodicalIF":2.7,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48940322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Review of ‘Making it Mine: Sir Arthur Russell and his Mineral Collection’ by Roy E. Starkey, 2022 Roy E.Starkey的《让它成为矿山:Arthur Russell爵士和他的矿物收藏》评论,2022
IF 2.7 3区 地球科学 Q2 MINERALOGY Pub Date : 2023-02-02 DOI: 10.1180/mgm.2023.6
N. Moles
{"title":"Review of ‘Making it Mine: Sir Arthur Russell and his Mineral Collection’ by Roy E. Starkey, 2022","authors":"N. Moles","doi":"10.1180/mgm.2023.6","DOIUrl":"https://doi.org/10.1180/mgm.2023.6","url":null,"abstract":"","PeriodicalId":18618,"journal":{"name":"Mineralogical Magazine","volume":"87 1","pages":"331 - 331"},"PeriodicalIF":2.7,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49587578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
2022 list of referees for Mineralogical Magazine 2022年矿物学杂志评审名单
IF 2.7 3区 地球科学 Q2 MINERALOGY Pub Date : 2023-02-01 DOI: 10.1180/mgm.2022.127
{"title":"2022 list of referees for Mineralogical Magazine","authors":"","doi":"10.1180/mgm.2022.127","DOIUrl":"https://doi.org/10.1180/mgm.2022.127","url":null,"abstract":"","PeriodicalId":18618,"journal":{"name":"Mineralogical Magazine","volume":"87 1","pages":"169 - 170"},"PeriodicalIF":2.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41935504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MGM volume 87 issue 1 Cover and Front matter 米高梅87卷第1期封面和封面问题
IF 2.7 3区 地球科学 Q2 MINERALOGY Pub Date : 2023-02-01 DOI: 10.1180/mgm.2023.12
{"title":"MGM volume 87 issue 1 Cover and Front matter","authors":"","doi":"10.1180/mgm.2023.12","DOIUrl":"https://doi.org/10.1180/mgm.2023.12","url":null,"abstract":"","PeriodicalId":18618,"journal":{"name":"Mineralogical Magazine","volume":" ","pages":"f1 - f1"},"PeriodicalIF":2.7,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49146927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Mineralogical Magazine
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1