Hocartite
Hocartite is a rare sulfosalt mineral with the chemical formula silver iron tin sulfide, Ag2FeSnS4. It crystallizes in the tetragonal system and is classified under the sulfosalt group in the Strunz classification as 2.CB.15a. This mineral is typically metallic in luster, with a dark gray to black color. It has a relatively high density and is opaque. Hocartite is known for its complex chemical composition and is of interest to mineralogists due to its rarity and unique structure.
Composition
- AgSilver41.6%
- SSulfur24.7%
- SnTin22.9%
- FeIron10.8%
Overview
Hocartite is a rare sulfosalt mineral with the chemical formula silver iron tin sulfide, Ag2FeSnS4. It crystallizes in the tetragonal system and is classified under the sulfosalt group in the Strunz classification as 2.CB.15a. This mineral is typically metallic in luster, with a dark gray to black color. It has a relatively high density and is opaque. Hocartite is known for its complex chemical composition and is of interest to mineralogists due to its rarity and unique structure.
Etymology
Hocartite is named after Raymond Hocart, in recognition of his contributions to mineralogy.
How to recognize it
Hocartite can be identified by its metallic luster and dark gray to black color. It is opaque and has a relatively high density. Due to its rarity, it is primarily identified in mineral collections and through chemical analysis. It is easily distinguishable from other sulfides due to its unique composition and color.
Trivia
Hocartite is notable for its complex chemical formula, which includes silver, iron, tin, and sulfur. It is a rare mineral, known from only a few localities. Its tetragonal crystal system is relatively uncommon among sulfosalt minerals, adding to its scientific interest.