A Sulfite-Bearing Analog of Marinellite

IF 0.8 4区地球科学 Q3 GEOLOGY Geology of Ore Deposits Pub Date : 2024-02-07 DOI:10.1134/s1075701523070152

N. V. Zubkova, N. V. Chukanov, D. A. Varlamov, M. F. Vigasina, I. V. Pekov, D. A. Ksenofontov, D. Yu. Pushcharovsky

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Abstract

The crystal structure of a mineral of the cancrinite group with an aluminosilicate framework of the marinellite type and a dominant sulfite group \({\text{SO}}_{3}^{{2 - }}\) in one of the extraframework sites in the liottite cavity is studied. The studied mineral is derived from a paleovolcano near Magliano (Lazio, Italy) and is one of the major rock-forming phases of the leucite–nepheline syenite. The divergence factor was R = 5.71% for 6819 independent reflections with I > 2σ(I). The studied mineral is trigonal, space group is P31c, and the unit cell parameters are a = 12.87267(18), c = 31.7393(5) Å, V = 4554.75(15) Å³. The crystal chemical formula Na_29.78K_11.82Ca_6.40(Si₃₆Al₃₆O₁₄₄)(SO₄)₆(SO₃)₂Cl₂(OH)_0.40⋅3.98H₂O (Z = 1), which is based on the results of XRD structure analysis, is consistent with electron-microprobe data. The presence of the \({\text{SO}}_{3}^{{2 - }}\) anion was confirmed by the Raman spectrum.

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一种含亚硫酸盐的马林卫星类似物

摘要研究了一种方解石类矿物的晶体结构，该矿物具有海泡石类型的铝硅酸盐框架，在锂辉石空腔中的一个框架外位点上具有主要的亚硫酸盐基团（{text{SO}}_{3}^{{2 - }}）。所研究的矿物来自马利亚诺（意大利拉齐奥）附近的一座古火山，是白云母-正长岩的主要成岩相之一。6819 个独立反射的发散因子为 R = 5.71%，I > 2σ(I)。所研究的矿物为三方晶，空间群为 P31c，单胞参数为 a = 12.87267(18)，c = 31.7393(5)埃，V = 4554.75(15)埃3。根据 XRD 结构分析结果得出的晶体化学式 Na29.78K11.82Ca6.40(Si36Al36O144)(SO4)6(SO3)2Cl2(OH)0.40⋅3.98H2O（Z = 1）与电子探针数据一致。拉曼光谱证实了阴离子的存在。

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来源期刊

Geology of Ore Deposits 地学-地质学

CiteScore

1.10

自引率

14.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Geology of Ore Deposits is a periodical covering the topic of metallic and nonmetallic mineral deposits, their formation conditions, and spatial and temporal distribution. The journal publishes original scientific articles and reviews on a wide range of problems in theoretical and applied geology. The journal focuses on the following problems: deep geological structure and geodynamic environment of ore formation; distribution pattern of metallogenic zones and mineral deposits; geology and formation environment of large and unique metallic and nonmetallic deposits; mineralogy of metallic and nonmetallic deposits; physicochemical and isotopic characteristics and geochemical environment of ore deposition; evolution of ore-forming systems; radiogeology and radioecology, economic problems in exploring, developing, and mining of ore commodities.