Bertrandite and Prasiolite Physical Properties

Bertrandite

Prasiolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.59-2.602.65

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

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

3,1

1.7 Mohs Hardness

6-77

2 10

1.8 Chemical Composition

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

SiO 2Ulrich Henn and Claudio C.

Bertrandite and Prasiolite Chemical Formula

While comparing Bertrandite and Prasiolite 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 Prasiolite chemical formula.

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

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Bertrandite and Prasiolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Prasiolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Prasiolite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 2.65 whereas that of Prasiolite is 2.65.