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Faustite
Faustite

Vlasovite
Vlasovite



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Faustite
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Vlasovite

Faustite and Vlasovite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Nearly insoluble in HCl and HNO3

Durability

-
-

Specific Gravity

2.92.97
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

{???} Indistinct
Distinct on {010}

Mohs Hardness

4.56
2 10
👆🏻

Chemical Composition

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
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Faustite and Vlasovite Chemical Formula

While comparing Faustite and Vlasovite 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 Faustite and Vlasovite chemical formula.

  • Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Vlasovite- -

Faustite and Vlasovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Vlasovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Vlasovite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 2.97 whereas that of Vlasovite is 2.97.