Malachite
Chemical Formula	Cu2CO3(OH)2
Species	Carbonates
Crystal System	Monoclinic
Mohs Scale	3-4
Specific Gravity	3.6-4
Color	Bright green, dark green, blackish green, commonly banded in masses; green to yellowish green in transmitted light
Streak	light green
Luster	Adamantine, Vitreous, Silky, Dull, Earthy
Refractive Index	n = 1.655 n = 1.875 n = 1.909
Diaphaneity	Transparent, Translucent
Cleavage	PerfectPerfect on , fair on .
Fracture	Irregular/Uneven, Sub-Conchoidal, Fibrous
Crystal Habit：Massive, botryoidal, stalactitic, crystals are acicular to tabular prismatic
Geological Setting：It is the most common secondary mineral found in the oxidized zones of copper deposits.