Mineral - Chalcostibite
Chalcostibite
Chemical Properties
Mineral Class
Sulfides and sulfosalts
Toxicity
none
Formula
CuSbS₂
Unit Cell
Physical Properties
Hardness
3 - 4
Streak
blackgraygray black
Density
Heavy (3,5-6)
Cleavage
Fracture
conchoidal
Tenacity
Brittle
Optical Properties
Color
blackgray
Birefringence
Luster
Metallic
Transparency
opaque
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
orthorhombic-dipyramidal - 2/m 2/m 2/m
Space Group
Pnma (62)
Habit
massive, prismatic, tabular
Formation
In hydrothermal ore deposits
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Guejarite
Groups and Members
Chalcostibite-Group