Tenacity
Brittle
-
Solubility
Effervesces in hot HCl
insoluble
Durability
-
-
Specific Gravity
2.92-3.122.36
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Subconchoidal, Fibrous
Cleavage
[10 1 1] perfect
[110] perfect, [101] good, [010] distinct
Mohs Hardness
3.5-4.53.5-4
2
10
👆🏻
Chemical Composition
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references