Ruby and Tanzanite Physical Properties

Ruby

Tanzanite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

3.97-4.053.35

1 7.18

1.5 Fracture

Conchoidal

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

No true cleavage

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

96.5-7

2 10

1.8 Chemical Composition

Al ₂ O ₃

Ca₂Al₃(SiO₄)₃(OH)

Ruby and Tanzanite Chemical Formula

While comparing Ruby and Tanzanite 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 Tanzanite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Ruby and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.35 whereas that of Tanzanite is 3.35.