Calaverite
Chemical Formula	AuTe2
Species	Sulfides
Crystal System	Monoclinic
Mohs Scale	2-3
Specific Gravity	9.1-9.3
Color	Brass yellow to silver white
Streak	Green to yellow grey
Luster	Metallic
Diaphaneity	Opaque
Cleavage	None
Fracture	Irregular/Uneven, Sub-Conchoidal
Crystal Habit：Bladed and slender striated prisms, also massive granular
Geological Setting：Low temperature hydrothermal veins.