Faustite and Ruby Physical Properties

Faustite

Ruby

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93.97-4.05

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal

Conchoidal

1.6 Cleavage

{???} Indistinct

No true cleavage

1.7 Mohs Hardness

4.59

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Faustite and Ruby Chemical Formula

While comparing Faustite and Ruby 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 Ruby chemical formula.

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

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Faustite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Faustite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Faustite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.