{"title":"A Look at Diamonds and Diamond Mining in Guyana","authors":"R. Bassoo, K. Befus","doi":"10.5741/gems.58.2.138","DOIUrl":"https://doi.org/10.5741/gems.58.2.138","url":null,"abstract":"","PeriodicalId":354281,"journal":{"name":"Gems & Gemology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133711168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Nasdala, K. Sameera, G. Fernando, M. Wildner, C. Chanmuang N., G. Habler, A. Erlacher, R. Škoda
{"title":"The Shape of Ekanite","authors":"L. Nasdala, K. Sameera, G. Fernando, M. Wildner, C. Chanmuang N., G. Habler, A. Erlacher, R. Škoda","doi":"10.5741/gems.58.2.156","DOIUrl":"https://doi.org/10.5741/gems.58.2.156","url":null,"abstract":"","PeriodicalId":354281,"journal":{"name":"Gems & Gemology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129380697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Zeug, L. Nasdala, C. Chanmuang N., C. Hauzenberger
the range are efficient exciting assigned
范围是有效的激励分配
{"title":"Gem Topaz from the Schneckenstein Crag, Saxony, Germany: Mineralogical Characterization and Luminescence","authors":"M. Zeug, L. Nasdala, C. Chanmuang N., C. Hauzenberger","doi":"10.5741/gems.58.1.2","DOIUrl":"https://doi.org/10.5741/gems.58.1.2","url":null,"abstract":"the range are efficient exciting assigned","PeriodicalId":354281,"journal":{"name":"Gems & Gemology","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124287799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Published information about the history of the Habachtal emerald mine in the era between War I and War II is limited and superficial. Subsequent to the departure of Emerald Mines Limited, the English company that had owned the property since 1896, the Habachtal mine was owned or controlled by Austrian, Swiss, Italian, or German companies or citizens. The names of various companies and individuals who were actively mining for some time in the Habach Valley are mentioned in numerous papers, books, or newspapers. The relationships between them and the property owners mentioned in files of the Mittersill land registry office are frequently unknown and the reasons for numerous transitions of ownership, followed by changes of the mining entities that operated the deposit, are not clearly seen. Using a wide selection of materials from Austrian and German archives, largely unpublished, the author seeks to trace the history of the Habachtal mine through this period and to fill the gaps left by existing publications. Activities and events after 1945 and the present situation are also briefly described.
{"title":"History of Emerald Mining in the Habachtal Deposit of Austria, Part II","authors":"K. Schmetzer","doi":"10.5741/gems.58.1.18","DOIUrl":"https://doi.org/10.5741/gems.58.1.18","url":null,"abstract":"Published information about the history of the Habachtal emerald mine in the era between War I and War II is limited and superficial. Subsequent to the departure of Emerald Mines Limited, the English company that had owned the property since 1896, the Habachtal mine was owned or controlled by Austrian, Swiss, Italian, or German companies or citizens. The names of various companies and individuals who were actively mining for some time in the Habach Valley are mentioned in numerous papers, books, or newspapers. The relationships between them and the property owners mentioned in files of the Mittersill land registry office are frequently unknown and the reasons for numerous transitions of ownership, followed by changes of the mining entities that operated the deposit, are not clearly seen. Using a wide selection of materials from Austrian and German archives, largely unpublished, the author seeks to trace the history of the Habachtal mine through this period and to fill the gaps left by existing publications. Activities and events after 1945 and the present situation are also briefly described.","PeriodicalId":354281,"journal":{"name":"Gems & Gemology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131340482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fluorescence Characteristics of Two Copper-Diffused Plagioclase Feldspars: Labradorite and Andesine","authors":"Qingchao Zhou, Chengsi Wang, A. Shen","doi":"10.5741/gems.58.4.424","DOIUrl":"https://doi.org/10.5741/gems.58.4.424","url":null,"abstract":"","PeriodicalId":354281,"journal":{"name":"Gems & Gemology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130611546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Liying Huang, Quan-li Chen, Yan Li, Zuowei Yin, Fengshun Xu, Xinxin Gao, Yang Du
{"title":"Composition and Spectral Characteristics of Porcelain-Treated Turquoise","authors":"Liying Huang, Quan-li Chen, Yan Li, Zuowei Yin, Fengshun Xu, Xinxin Gao, Yang Du","doi":"10.5741/gems.58.4.438","DOIUrl":"https://doi.org/10.5741/gems.58.4.438","url":null,"abstract":"","PeriodicalId":354281,"journal":{"name":"Gems & Gemology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133495804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Canary in the Ruby Mine: Low-Temperature Heat Treatment Experiments on Burmese Ruby","authors":"E. Hughes, W. Vertriest","doi":"10.5741/gems.58.4.400","DOIUrl":"https://doi.org/10.5741/gems.58.4.400","url":null,"abstract":"variety","PeriodicalId":354281,"journal":{"name":"Gems & Gemology","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131527020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Never Stop Innovating: Gem Artist Chi Huynh","authors":"Tao Hsu, Artitaya Homkrajae, Kevin Schumacher","doi":"10.5741/gems.58.4.458","DOIUrl":"https://doi.org/10.5741/gems.58.4.458","url":null,"abstract":"","PeriodicalId":354281,"journal":{"name":"Gems & Gemology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122362082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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