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Atacamite
Atacamite

Faustite
Faustite



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Atacamite
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Faustite

Atacamite and Faustite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.745-3.7762.9
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Brittle
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
1.6 Cleavage
Perfect on {010}, fair on {101}
{???} Indistinct
1.7 Mohs Hardness
3-3.54.5
Amber
2 10
1.8 Chemical Composition
Cu2Cl(OH)3
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , 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 O’Donoghue , 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.