1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Sub-Conchoidal, Splintery
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
1.6 Cleavage
{201} Imperfect, {100} Poor, {001} Poor
{???} Indistinct
1.7 Mohs Hardness
1.8 Chemical Composition
Not Available
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)