1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle
1.6 Cleavage
{001} Indistinct, {???} Indistinct
Distinct on {10 1 1}, imperfect on {01 1 2}
1.7 Mohs Hardness
1.8 Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references