Rosasite and Bertrandite Physical Properties

Rosasite

Bertrandite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.22.59-2.60

1 7.18

1.5 Fracture

Splintery

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Perfect on {100} and {010}

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

1.7 Mohs Hardness

46-7

2 10

1.8 Chemical Composition

Not Available

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

Rosasite and Bertrandite Chemical Formula

While comparing Rosasite 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 Rosasite and Bertrandite chemical formula.

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

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Rosasite and Bertrandite Specific Gravity

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