Chrysoprase and Bertrandite Physical Properties

Chrysoprase

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

2.58-2.642.59-2.60

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

None

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

1.7 Mohs Hardness

6.5-76-7

2 10

1.8 Chemical Composition

SiO₂ (with a high level of nickel impurities )

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

Chrysoprase and Bertrandite Chemical Formula

While comparing Chrysoprase 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 Chrysoprase and Bertrandite chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Chrysoprase and Bertrandite Specific Gravity

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