Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.253.07-3.13
1
7.18
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Fracture
-
Conchoidal, Uneven
Cleavage
Imperfect in one direction
{100} Perfect, {010} Distinct, {102} Distinct
Mohs Hardness
5-5.53-3.5
2
10
👆🏻
Chemical Composition
CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references