Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.04-3.175.9-6.3
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
{001} Indistinct, {???} Indistinct
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
5.54.5-5
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references