Tenacity
-
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
3.07-3.133.30-3.50
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
{100} Perfect, {010} Distinct, {102} Distinct
Perfect on {110}, poor on {101}, {001} rare
Mohs Hardness
3-3.55
2
10
👆🏻
Chemical Composition
Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references