Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.1-3.24.95-5.0
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
Vitreous, pearly on cleavage
Imperfect to indistinct on {10 1 0}, parting on {0001}
Mohs Hardness
3-44-5
2
10
👆🏻
Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references