Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.90-3.026.50-7.00
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Irregular, Conchoidal
Cleavage
Indistinct on {110}
On {011}, distinct; on {001}, {013}, indistinct
Mohs Hardness
5-5.53
2
10
👆🏻
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
PbMoO 4Walter Schumann , Gemstones of the world (2001)