Atacamite and Faustite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.745-3.776
2.9
Fracture
Conchoidal, Conchoidal, Brittle
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
Cleavage
Perfect on {010}, fair on {101}
{???} Indistinct
Chemical Composition
Cu2Cl(OH)3
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Atacamite and Faustite Chemical Formula
While comparing Atacamite and Faustite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Atacamite and Faustite chemical formula.
- Chemical formula of Atacamite- Cu2Cl(OH)3
- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Atacamite and Faustite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Atacamite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 2.9 whereas that of Faustite is 2.9.