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Minerals - Tetradymite | TerraCollect
Mineral - Tetradymite
Tetradymite
Biâ‚‚Teâ‚‚S
Chemical Properties
Mineral Class
Sulfides and sulfosalts
Toxicity
none
Formula
Biâ‚‚Teâ‚‚S
Unit Cell
Physical Properties
Hardness
1.5 - 2
Streak
gray
Density
Very Heavy (>6)
Optical Properties
Color
gray
bronze
Birefringence
Luster
Metallic
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
trigonal
Point Group
Cleavage
Fracture
Tenacity
Space Group
Habit
massive,
pyramidal,
columnar
Formation
Metasomatose, hydrothermal
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Tetradymite
