Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.95-4.102.81
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
{001} Perfect
Mohs Hardness
3.5-44.5-5
2
10
👆🏻
Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references