1 Physical Properties
1.1 Tenacity
1.2 Solubility
insoluble
Slowly dissolves in water
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous
Conchoidal, Brittle
1.6 Cleavage
[110] perfect, [101] good, [010] distinct
None
1.7 Mohs Hardness
1.8 Chemical Composition
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available