Ruby and Powellite Physical Properties

Ruby

Powellite

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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

3.97-4.054.23

1 7.18

1.5 Fracture

Conchoidal

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

No true cleavage

{111} Distinct

1.7 Mohs Hardness

93.5-4

2 10

1.8 Chemical Composition

Al ₂ O ₃

CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Ruby and Powellite Chemical Formula

While comparing Ruby and Powellite 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 Powellite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Ruby and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Powellite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 4.23 whereas that of Powellite is 4.23.