Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.07-3.132.97-3.14
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, Conchoidal
Cleavage
{100} Perfect, {010} Distinct, {102} Distinct
{1011} Indistinct
Mohs Hardness
3-3.5-9999
2
10
👆🏻
Chemical Composition
Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)