Prasiolite and Bertrandite Physical Properties

Prasiolite

Bertrandite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.652.59-2.60

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

3,1

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

1.7 Mohs Hardness

76-7

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Prasiolite and Bertrandite Chemical Formula

While comparing Prasiolite 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 Prasiolite and Bertrandite chemical formula.

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

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Prasiolite and Bertrandite Specific Gravity

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