Ruby and Piemontite Physical Properties

Ruby

Piemontite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.05Not Available

1 7.18

1.5 Fracture

Conchoidal

Uneven, Splintery

1.6 Cleavage

No true cleavage

[001] good, [100] distinct

1.7 Mohs Hardness

96-6.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

Not Available

Ruby and Piemontite Chemical Formula

While comparing Ruby and Piemontite 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 Piemontite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃

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Ruby and Piemontite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Piemontite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Piemontite Optical Properties during the identification of gemstone. Specific gravity of Ruby is Not Available whereas that of Piemontite is Not Available.