Fibrolite and Bertrandite Physical Properties

Fibrolite

Bertrandite

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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

3.14-3.252.59-2.60

1 7.18

1.5 Fracture

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

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

6-76-7

2 10

1.8 Chemical Composition

Al 2SiO 5Arthur Thomas , Gemstones (2009)

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

Fibrolite and Bertrandite Chemical Formula

While comparing Fibrolite 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 Fibrolite and Bertrandite chemical formula.

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

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Fibrolite and Bertrandite Specific Gravity

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