Wernerite and Bertrandite Physical Properties

Wernerite

Bertrandite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.50-2.80

Perfect

5-6.5

Na 4(Al,Si) 12O 24Cl to Ca 4(Si,Al) 12O 24(CO 3,SO 4)Arthur Thomas , Gemstones (2009)

2.59-2.60

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

6-7

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

Wernerite and Bertrandite Chemical Formula

While comparing Wernerite 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 Wernerite and Bertrandite chemical formula.

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Wernerite and Bertrandite Specific Gravity

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