Mineral - Pearceite
Pearceite
Chemical Properties
Mineral Class
Sulfides and sulfosalts
Toxicity
middle
Formula
[Ag₉CuS₄][(Ag,Cu)₆(As,Sb)₂S₇]
Unit Cell
Physical Properties
Hardness
2.5 - 3
Streak
blackredred black
Density
Very Heavy (>6)
Cleavage
Fracture
Tenacity
Optical Properties
Color
black
Birefringence
Luster
Metallic
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
trigonal
Point Group
Space Group
Habit
granular, massive, prismatic, tabular
Formation
hydrothermal
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Pearceite