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
Gemstones (2009)
Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous
1.6 Cleavage
Not Available
[110] perfect, [101] good, [010] distinct
1.7 Mohs Hardness
1.8 Chemical Composition
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references