Tenacity
Brittle
-
Solubility
Effervesces in hot HCl
-
Durability
-
-
Specific Gravity
2.92-3.123.1-3.2
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
[10 1 1] perfect
Vitreous, pearly on cleavage
Mohs Hardness
3.5-4.53-4
2
10
👆🏻
Chemical Composition
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references