Ruby and Pumpellyite Physical Properties

Ruby

Pumpellyite

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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

3.97-4.053.20-3.30

1 7.18

1.5 Fracture

Conchoidal

Not Available

1.6 Cleavage

No true cleavage

Not Available

1.7 Mohs Hardness

95-6

2 10

1.8 Chemical Composition

Al ₂ O ₃

Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

Ruby and Pumpellyite Chemical Formula

While comparing Ruby and Pumpellyite 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 Pumpellyite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Pumpellyite- Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

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Ruby and Pumpellyite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Pumpellyite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Pumpellyite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.20-3.30 whereas that of Pumpellyite is 3.20-3.30.