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, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous
1.6 Cleavage
None
[110] perfect, [101] good, [010] distinct
1.7 Mohs Hardness
1.8 Chemical Composition
Ca 9(Mg,Fe2+ )(PO 4) 6(PO 3OH)Anthony et al , Handbook of mineralogy (2001)
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references