Kashmir sapphire and Bertrandite Physical Properties

Kashmir sapphire

Bertrandite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.59-2.60

1 7.18

1.5 Fracture

Not Available

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Not Available

{001} Perfect, {110} Distinct, {101} Distinct

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

Not Available

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Kashmir sapphire and Bertrandite Chemical Formula

While comparing Kashmir sapphire and Bertrandite 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 Kashmir sapphire and Bertrandite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Kashmir sapphire and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kashmir sapphire and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kashmir sapphire and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Kashmir sapphire is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.