Pub Date : 2022-01-01DOI: 10.15506/jog.2022.38.3.219
C. Williams, B. Williams
{"title":"Violet Spinel with Strong Green Fluorescence","authors":"C. Williams, B. Williams","doi":"10.15506/jog.2022.38.3.219","DOIUrl":"https://doi.org/10.15506/jog.2022.38.3.219","url":null,"abstract":"","PeriodicalId":48560,"journal":{"name":"Journal of Gemmology","volume":"107 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67235899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.15506/jog.2022.38.4.348
Chawalit Chankhantha, Pinit Kitkhunthod, Ratthaphon Amphon, H. ur Rehman, A. Shen
{"title":"Spectroscopic Characteristics and Causes of Colour Modification in Heat-Treated Pink-to-Red Spinel from Luc Yen, Vietnam","authors":"Chawalit Chankhantha, Pinit Kitkhunthod, Ratthaphon Amphon, H. ur Rehman, A. Shen","doi":"10.15506/jog.2022.38.4.348","DOIUrl":"https://doi.org/10.15506/jog.2022.38.4.348","url":null,"abstract":"","PeriodicalId":48560,"journal":{"name":"Journal of Gemmology","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67237843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.15506/jog.2021.38.1.2
Carol M. Stockton
{"title":"Gold Demand Trends 2021","authors":"Carol M. Stockton","doi":"10.15506/jog.2021.38.1.2","DOIUrl":"https://doi.org/10.15506/jog.2021.38.1.2","url":null,"abstract":"","PeriodicalId":48560,"journal":{"name":"Journal of Gemmology","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67234319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.15506/jog.2022.38.3.215a
Carol M. Stockton
{"title":"GemGenève Seminar Presentations","authors":"Carol M. Stockton","doi":"10.15506/jog.2022.38.3.215a","DOIUrl":"https://doi.org/10.15506/jog.2022.38.3.215a","url":null,"abstract":"","PeriodicalId":48560,"journal":{"name":"Journal of Gemmology","volume":"100 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67235407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.15506/jog.2022.38.3.213
Carol M. Stockton
{"title":"Yehuda Diamond Detectors","authors":"Carol M. Stockton","doi":"10.15506/jog.2022.38.3.213","DOIUrl":"https://doi.org/10.15506/jog.2022.38.3.213","url":null,"abstract":"","PeriodicalId":48560,"journal":{"name":"Journal of Gemmology","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67235442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.15506/jog.2022.38.3.289
{"title":"Gem-A Conference is now Taking Registrations","authors":"","doi":"10.15506/jog.2022.38.3.289","DOIUrl":"https://doi.org/10.15506/jog.2022.38.3.289","url":null,"abstract":"","PeriodicalId":48560,"journal":{"name":"Journal of Gemmology","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67236156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.15506/jog.2022.38.4.309
Carol M. Stockton
{"title":"Sustainable Jewellery Practices Course","authors":"Carol M. Stockton","doi":"10.15506/jog.2022.38.4.309","DOIUrl":"https://doi.org/10.15506/jog.2022.38.4.309","url":null,"abstract":"","PeriodicalId":48560,"journal":{"name":"Journal of Gemmology","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67237109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.15506/jog.2022.38.4.329
Vahid Ahadnejad, M. Krzemnicki, A. Hirt
: Demantoid from Kerman Province in south-east Iran was investigated using microscopy, spectroscopy (optical absorption, FTIR and Raman), chemical analysis (EDXRF and LA-ICP-TOF-MS) and magnetic susceptibility measurements. The samples were transparent to semi-transparent and commonly contained acicular chrysotile inclusions. Their spectroscopic and chemical properties were consistent with demantoid from serpentinite host rock. The samples ranged from yellowish green to deep green, depending on Cr and Fe content. These two elements are also largely responsible for the material’s
{"title":"Demantoid from Kerman Province, South-east Iran: A Mineralogical and Gemmological Overview","authors":"Vahid Ahadnejad, M. Krzemnicki, A. Hirt","doi":"10.15506/jog.2022.38.4.329","DOIUrl":"https://doi.org/10.15506/jog.2022.38.4.329","url":null,"abstract":": Demantoid from Kerman Province in south-east Iran was investigated using microscopy, spectroscopy (optical absorption, FTIR and Raman), chemical analysis (EDXRF and LA-ICP-TOF-MS) and magnetic susceptibility measurements. The samples were transparent to semi-transparent and commonly contained acicular chrysotile inclusions. Their spectroscopic and chemical properties were consistent with demantoid from serpentinite host rock. The samples ranged from yellowish green to deep green, depending on Cr and Fe content. These two elements are also largely responsible for the material’s","PeriodicalId":48560,"journal":{"name":"Journal of Gemmology","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67237678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.15506/jog.2021.38.1.15
Ting Shui, H. Wenqing
{"title":"Sailboat-like Inclusion in Ruby from China","authors":"Ting Shui, H. Wenqing","doi":"10.15506/jog.2021.38.1.15","DOIUrl":"https://doi.org/10.15506/jog.2021.38.1.15","url":null,"abstract":"","PeriodicalId":48560,"journal":{"name":"Journal of Gemmology","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67234382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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