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
1.7 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
1.9 Cleavage
Not Available
{???} Indistinct
1.10 Mohs Hardness
1.16 Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)