{"title":"Minerály řady ullmannit - gersdorffit v asociaci s milleritem z haldy dolu Lill v Příbrami (Česká republika)","authors":"J. Sejkora, Jakub Plášil, J. Špalek, Pavel Škácha","doi":"10.46861/bmp.28.203","DOIUrl":null,"url":null,"abstract":"Minerals of the ullmannite–gersdorffite solid-solution was found at mine dump material from the Lill mine, the Černojamské ore deposit, Příbram, central Bohemia, Czech Republic. It forms grey groups of idiomorphic crystals up to 0.5 mm across with metallic luster on millerite crystals. It is strongly chemically zoned, from As-rich ullmannite to gersdorffite with variable Sb contents. Its unit-cell parameter, a 5.7728(13) Å and V 192.37(7) Å3, was refined from single-crystal X-ray data. Groups of acicular millerite crystals up to 4 mm in length and formula (Ni0.97Co0.03)Σ1.00S1.01 and very rare siegenite grains up to 80 μm and formula Co1.00(Ni1.66Co0.24Fe0.02)Σ1.92S4.09 were found in association.","PeriodicalId":53145,"journal":{"name":"Bulletin Mineralogie Petrologie","volume":"8 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin Mineralogie Petrologie","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.46861/bmp.28.203","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
引用次数: 0
Abstract
Minerals of the ullmannite–gersdorffite solid-solution was found at mine dump material from the Lill mine, the Černojamské ore deposit, Příbram, central Bohemia, Czech Republic. It forms grey groups of idiomorphic crystals up to 0.5 mm across with metallic luster on millerite crystals. It is strongly chemically zoned, from As-rich ullmannite to gersdorffite with variable Sb contents. Its unit-cell parameter, a 5.7728(13) Å and V 192.37(7) Å3, was refined from single-crystal X-ray data. Groups of acicular millerite crystals up to 4 mm in length and formula (Ni0.97Co0.03)Σ1.00S1.01 and very rare siegenite grains up to 80 μm and formula Co1.00(Ni1.66Co0.24Fe0.02)Σ1.92S4.09 were found in association.
期刊介绍：
Bulletin Mineralogie Petrologie is a peer-reviewed journal focused especially on: mineralogy, crystal chemistry and study of crystal structures of minerals study of mineral associations and processes of their origin meteoritics, research of tectites economic geology (of ore deposits) and study of history of mining of ore deposits topographic mineralogy petrology of igneous, metamorphic and sedimentary rocks instrumental analytical methods at mineralogy and petrology mineralogy and petrology as tools for archeology and similar disciplines
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