Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.70-2.753.07-3.13
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
From the Greek for luster, for its pearly luster on the cleavage.
{100} Perfect, {010} Distinct, {102} Distinct
Mohs Hardness
4.5-53-3.5
2
10
👆🏻
Chemical Composition
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references