1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.1 Durability
Not Available
Not Available
1.4 Specific Gravity
1.15 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
1.16 Cleavage
Indistinct
Perfect in three directions
1.17 Mohs Hardness
1.18 Chemical Composition
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references