Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
1.793.85-3.94
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
{110} Good
{010} Good, {100} Distinct
Mohs Hardness
2.55-5.5
2
10
👆🏻
Chemical Composition
MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
(Mn2+ ,Fe2+ ,Mg,Ca) 2(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth Edition (2006)