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
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle
1.6 Cleavage
{???} Indistinct
Distinct on {10 1 1}, imperfect on {01 1 2}
1.7 Mohs Hardness
1.8 Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references