Hardness: 3.5 - 4
Density: 4.3 - 4.4
Streak: Greenish black
Habit: Fine grained to massive aggregates.
Colours: Brass yellow, may be tarnished and iridescent.
| ||Crystal System: Tetragonal|
Reaction with HCl: Very weak
Identification in hand sample:
Distinctive brassy-green colour. Has a richer yellow colour than pyrite and a lower hardness.
Most common copper-bearing mineral, found in many hydrothermal sulfide deposits. Often associated with galena, sphalerite, pyrite and other sulfides.
Industrial / ecomonic uses:
Mined for its copper which has innumerable industrial uses.