Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.90-3.023.05-3.08
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Subconchoidal, Uneven, Conchoidal
Cleavage
Indistinct on {110}
Poor on {100}
Mohs Hardness
5-5.55
2
10
👆🏻
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)