Gallite
ID: 108
Gallite
Chemical Formula
CuGaS2
Hardness (Mohs)
3 - 3.5
Crystal System
Tetragonal
Streak
Greyish black
Luster
Metallic
Diaphaneity
Opaque
Color
Grey
Crystal Habit / Mode of Occurrence
includes wedge-shaped crystals in vesicles or on the walls of cavities of volcanic rocks
Fun Facts
Named for its Gallium Content: The most obvious fun fact is right in its name! "Gallite" was named in 1958 due to the significant presence of gallium in its chemical composition