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Zincite and Malachite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.25-4.10   
5.50-5.90   

Fracture
Conchoidal, Conchoidal, Gemstones (2009), Uneven   
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   

Cleavage
Perfect on { 2 01} fair on {010}   
On {10 1 0}, perfect; parting on {000 1 }   

Mohs Hardness
3.5-4   
4   

Chemical Composition
Cu2CO3(OH)2   
(Zn,Mn2+ )OMichael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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