Tenacity
-
-
Solubility
insoluble
Insoluble in acids
Durability
-
-
Specific Gravity
2.364.20-4.30
1
7.18
👆🏻
Fracture
Uneven, Subconchoidal, Fibrous
Uneven, Conchoidal
Cleavage
[110] perfect, [101] good, [010] distinct
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
3.5-46-6.5
2
10
👆🏻
Chemical Composition
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)