Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.04-3.263.07-3.13
1
7.18
👆🏻
Fracture
Splintery, Uneven
Conchoidal, Uneven
Cleavage
{110} perfect
{100} Perfect, {010} Distinct, {102} Distinct
Mohs Hardness
5-63-3.5
2
10
👆🏻
Chemical Composition
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references