Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.07-3.132.6-3.3
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Lamellar
Cleavage
{100} Perfect, {010} Distinct, {102} Distinct
Perfect 001
Mohs Hardness
3-3.52-2.5
2
10
👆🏻
Chemical Composition
Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6