Mimetit from Ján Nepomuk ložiska pri Veľkom Poli（斯洛伐克共和国）

Q3 Earth and Planetary Sciences

Bulletin Mineralogie Petrologie Pub Date : 2021-01-01 DOI:10.46861/bmp.29.001

Martin Števko, Peter Tóth, Filip Lednický, Jiří Sejkora, Zdeněk Dolníček

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引用次数: 1

摘要

最近在斯洛伐克bansk Bystrica地区Veľké Pole， Žarnovica Co.附近废弃的Ján Nepomuk铅银矿中发现了一种新的镁铝铁矿。它形成浅到亮黄色的棱柱状晶体，大小可达5毫米。闪辉石产于强蚀变和褐铁矿化石灰岩的裂缝和孔洞中，并伴有原生方铅矿和黄铁矿的浸渍和残余。它与铜铜矿和方解石伴生。精细化的单位胞参数(对于六边形空间群P63/m)为a 10.2437(4) Å， c 7.4437(6) Å和V 676.44(6) Å3。除了Pb、As和Cl的主要含量外，还检测到少量的Ca(可达0.36 apfu)、Al(可达0.03 apfu)、P(可达0.03 apfu)和V(可达0.02 apfu)。

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Mimetit z ložiska Ján Nepomuk pri Veľkom Poli (Slovenská republika)

A new occurrence of mimetite was recently discovered at the abandoned Ján Nepomuk Pb-Ag deposit near Veľké Pole, Žarnovica Co., Banská Bystrica Region, Slovakia. It forms light to bright yellow, prismatic crystals reaching up to 5 mm in size. Mimetite occurs in fractures and cavities of strongly altered and limonitised limestone with impregnations and relicts of primary galena and pyrite. It is associated with cerussite and calcite. The refined unit-cell parameters (for the hexagonal space group P63/m) are a 10.2437(4) Å, c 7.4437(6) Å and V 676.44(6) Å3. Except of dominant contents of Pb, As and Cl only minor amounts of Ca (up to 0.36 apfu), Al (up to 0.03 apfu), P (up to 0.03 apfu) and V (up to 0.02 apfu) were detected in four mimetite samples studied by EMPA-WDS.

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来源期刊

Bulletin Mineralogie Petrologie Earth and Planetary Sciences-Economic Geology

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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