1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
1.6 Cleavage
[110] perfect, [101] good, [010] distinct
111 (perfect in four directions)
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
C