Zoubekite
Zoubekite is a rare sulfosalt mineral with the chemical formula silver lead antimony sulfide, AgPb4Sb4S10. It crystallizes in the orthorhombic crystal system and is classified within the sulfosalt group of minerals. This mineral typically exhibits a metallic luster and is characterized by its dark gray to black color. It has a relatively low hardness, estimated around 2.5 on the Mohs scale, and a moderate density. Zoubekite is notable for its complex chemical composition and is primarily found in hydrothermal vein environments. It is a member of the sulfosalt mineral class, which includes minerals with complex combinations of sulfur and metal elements.
Composition
- PbLead47.5%
- SbAntimony27.9%
- SSulfur18.4%
- AgSilver6.2%
Overview
Zoubekite is a rare sulfosalt mineral with the chemical formula silver lead antimony sulfide, AgPb4Sb4S10. It crystallizes in the orthorhombic crystal system and is classified within the sulfosalt group of minerals. This mineral typically exhibits a metallic luster and is characterized by its dark gray to black color. It has a relatively low hardness, estimated around 2.5 on the Mohs scale, and a moderate density. Zoubekite is notable for its complex chemical composition and is primarily found in hydrothermal vein environments. It is a member of the sulfosalt mineral class, which includes minerals with complex combinations of sulfur and metal elements.
Etymology
Zoubekite is named after Vladimír Zoubek, a Czech mineralogist. The mineral was approved by the International Mineralogical Association (IMA) and recognized in the mineralogical community in honor of his contributions to the field.
How to recognize it
Zoubekite can be identified by its metallic luster and dark gray to black color. It has a hardness of approximately 2.5 on the Mohs scale, making it relatively soft. A streak test may reveal a dark gray to black streak. Its low hardness and metallic appearance help distinguish it from other sulfide minerals. However, due to its rarity and similar appearance to other sulfosalts, it may be confused with related species without detailed chemical analysis.
Trivia
Zoubekite is notable for its complex chemical formula, which includes silver, lead, antimony, and sulfur. It is a rare mineral, with few known localities worldwide. The mineral is named after a prominent mineralogist, Vladimír Zoubek, in recognition of his work in the field of mineralogy.