Demantoid and Bertrandite Physical Properties

Demantoid

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

3.77-3.952.59-2.60

1 7.18

1.5 Fracture

Not Available

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

6.56-7

2 10

1.8 Chemical Composition

Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

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

Demantoid and Bertrandite Chemical Formula

While comparing Demantoid 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 Demantoid and Bertrandite chemical formula.

Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

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Demantoid Vs Faustite

Demantoid and Bertrandite Specific Gravity

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