Vishnevite and Faustite Physical Properties

Vishnevite

Faustite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.9

1 7.18

1.5 Fracture

Brittle, Uneven

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Perfect

{???} Indistinct

1.7 Mohs Hardness

5-64.5

2 10

1.8 Chemical Composition

Not Available

(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Vishnevite and Faustite Chemical Formula

While comparing Vishnevite 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 Vishnevite and Faustite chemical formula.

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

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Vishnevite and Faustite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vishnevite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vishnevite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Vishnevite is 2.9 whereas that of Faustite is 2.9.