Bertrandite and Fibrolite Physical Properties

Bertrandite

Fibrolite

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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

2.59-2.603.14-3.25

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

6-76-7

2 10

1.8 Chemical Composition

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

Al 2SiO 5Arthur Thomas , Gemstones (2009)

Bertrandite and Fibrolite Chemical Formula

While comparing Bertrandite and Fibrolite 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 Fibrolite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)

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Bertrandite and Fibrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.