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Bertrandite
Bertrandite

Star Sapphire
Star Sapphire



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Bertrandite
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Star Sapphire

Bertrandite and Star Sapphire Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.59-2.60
-
{001} Perfect, {110} Distinct, {101} Distinct
6-7
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
 
-
-
-
3.90-4.05
-
None
-9999
Al 2O 3Ulrich Henn and Claudio C.

Bertrandite and Star Sapphire Chemical Formula

While comparing Bertrandite and Star Sapphire 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 Star Sapphire chemical formula.

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Bertrandite and Star Sapphire Specific Gravity

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