Bertrandite and Amazonite Physical Properties

Bertrandite

Amazonite

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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

2.59-2.602.55-2.57

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

1.7 Mohs Hardness

6-76-6.5

2 10

1.8 Chemical Composition

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

KAlSi₃O₈

Bertrandite and Amazonite Chemical Formula

While comparing Bertrandite and Amazonite 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 Bertrandite and Amazonite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Amazonite- KAlSi₃O₈

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Bertrandite and Amazonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Amazonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Amazonite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 2.55-2.57 whereas that of Amazonite is 2.55-2.57.