Bertrandite and Sylvite Physical Properties

Bertrandite

Sylvite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.59-2.601.993

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Uneven, Brittle

1.6 Cleavage

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

Perfect on [100], [010], [001]

1.7 Mohs Hardness

6-72.5

2 10

1.8 Chemical Composition

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

Not Available

Bertrandite and Sylvite Chemical Formula

While comparing Bertrandite and Sylvite 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 Sylvite chemical formula.

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

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Bertrandite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 1.993 whereas that of Sylvite is 1.993.