Malachite Facts

Malachite Facts

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Malachite Properties

Chemical CompositionIt is Copper Carbonate Hydroxide having the chemical formula as Cu2(CO3)(OH)2.
ColoursShall always be green. Green shades would vary between light to dark green.
StreakLight green, dark green, black
Refractive Index1.65 – 1.91
Specific Gravity3.7 to 3.9
LusterVitreous, silky, dull
Solid StateOpaque to translucent.
Crystal SystemMonoclinic
HardnessVaries between 3.5-4 Mohs.
Heat SensitiveYes
FracturesUneven to Sub-Conchoidal.
Bi-refringence0.021
LuminescenceNone
SourceRussia, Untied States, Mexico, Australia, Germany, Romania, Chile, United Kingdom, Zambia, Namibia, Zaire and South Africa.
EnhancementOccasionally done to improve the durability and colour.
PrecautionsSpecial care has to be taken. Avoid exposure to acids and excessive heat. Protect from sharp blows and scratches. Clean with a soft cloth. To be kept away from the water as well.
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