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Glaucophane
Glaucophane

Bertrandite
Bertrandite



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Glaucophane
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Bertrandite

Glaucophane 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
3-3.15
2.59-2.60
1.5 Fracture
Conchoidal, Brittle, Conchoidal
Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
Good on [110] and on [001]
{001} Perfect, {110} Distinct, {101} Distinct
1.7 Mohs Hardness
6.0-6.5
6-7
1.8 Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Glaucophane and Bertrandite Chemical Formula

While comparing Glaucophane 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 Glaucophane and Bertrandite chemical formula.

  • Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
  • Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Glaucophane and Bertrandite Specific Gravity

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