Sapphire and Pumpellyite Physical Properties

Sapphire

Pumpellyite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.033.20-3.30

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Not Available

1.6 Cleavage

None, but may exhibit parting

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.

Sapphire and Pumpellyite Chemical Formula

While comparing Sapphire 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 Sapphire and Pumpellyite chemical formula.

Chemical formula of Sapphire- 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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Sapphire and Pumpellyite Specific Gravity

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