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Star Ruby
Star Ruby

Bertrandite
Bertrandite



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Star Ruby
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Bertrandite

Star Ruby and Bertrandite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.95-4.102.59-2.60
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
Not Available
{001} Perfect, {110} Distinct, {101} Distinct
1.7 Mohs Hardness
Not Available6-7
Amber
2 10
1.8 Chemical Composition
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Star Ruby and Bertrandite Chemical Formula

While comparing Star Ruby 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 Star Ruby and Bertrandite chemical formula.

  • Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Star Ruby and Bertrandite Specific Gravity

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