Bertrandite and Forsterite Physical Properties

Bertrandite

Forsterite

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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

2.59-2.603.23-3.26

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

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

Perfect on {010} imperfect on {100}

1.7 Mohs Hardness

6-76.5-7

2 10

1.8 Chemical Composition

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

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Bertrandite and Forsterite Chemical Formula

While comparing Bertrandite and Forsterite 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 Forsterite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Bertrandite and Forsterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.