Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.1-3.24.00-4.65
1
7.18
👆🏻
Fracture
-
Uneven, Sub-Conchoidal
Cleavage
Vitreous, pearly on cleavage
Perfect on [1011]
Mohs Hardness
3-45-5.5
2
10
👆🏻
Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references