Ruby and Faustite Physical Properties

Ruby

Faustite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.052.9

1 7.18

1.5 Fracture

Conchoidal

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

1.6 Cleavage

No true cleavage

{???} Indistinct

1.7 Mohs Hardness

94.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Ruby and Faustite Chemical Formula

While comparing Ruby 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 Ruby and Faustite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Ruby and Faustite Specific Gravity

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