1 Physical Properties
1.1 Tenacity
1.3 Solubility
Not Available
Effervesces in hot HCl
1.5 Durability
Not Available
Not Available
1.7 Specific Gravity
3.04-3.172.92-3.12
1
7.18
1.10 Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
1.11 Cleavage
{001} Indistinct, {???} Indistinct
[10 1 1] perfect
1.13 Mohs Hardness
1.15 Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references