Selenite and Faustite Physical Properties

Selenite

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

Not Available

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Not Available

{???} Indistinct

1.7 Mohs Hardness

24.5

2 10

1.8 Chemical Composition

Not Available

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

Selenite and Faustite Chemical Formula

While comparing Selenite 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 Selenite 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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Selenite and Faustite Specific Gravity

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