1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.2 Specific Gravity
1.6 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous
1.8 Cleavage
Not Available
[110] perfect, [101] good, [010] distinct
1.10 Mohs Hardness
1.12 Chemical Composition
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references