Chrysoberyl and Faustite Physical Properties

Chrysoberyl

Faustite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.69-3.812.9

1 7.18

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Fracture

Uneven, Conchoidal to uneven, ConchoidalWalter Schumann

Conchoidal

Cleavage

Distinct on {110}, imperfect on {010}, poor on {001}

{???} Indistinct

Mohs Hardness

8.54.5

2 10

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Chemical Composition

BeAl ₂ O ₄

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

Chrysoberyl and Faustite Chemical Formula

While comparing Chrysoberyl 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 Chrysoberyl and Faustite chemical formula.

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

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Chrysoberyl and Faustite Specific Gravity

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