Bertrandite and Sanidine Physical Properties

Bertrandite

Sanidine

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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

2.59-2.602.54-2.61

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

{001} Perfect, {010} Good

1.7 Mohs Hardness

6-76

2 10

1.8 Chemical Composition

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

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Bertrandite and Sanidine Chemical Formula

While comparing Bertrandite and Sanidine 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 Sanidine chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Sanidine- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Bertrandite and Sanidine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Sanidine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Sanidine Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 2.54-2.61 whereas that of Sanidine is 2.54-2.61.