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Shigaite
Shigaite

Bertrandite
Bertrandite



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Shigaite
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Bertrandite

Shigaite and Bertrandite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Moderately flexible
-
-
2.32
-
Perfect on {0001}
2
Pb6Cu3BiS4
 
-
-
-
2.59-2.60
-
{001} Perfect, {110} Distinct, {101} Distinct
6-7
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Shigaite and Bertrandite Chemical Formula

While comparing Shigaite 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 Shigaite and Bertrandite chemical formula.

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Shigaite and Bertrandite Specific Gravity

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