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Tortoiseshell
Tortoiseshell

Bertrandite
Bertrandite



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Tortoiseshell
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Bertrandite

Tortoiseshell 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
1.25-1.352.59-2.60
Amber
1 7.18
1.5 Fracture
Not Available
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
Not Available
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Tortoiseshell and Bertrandite Chemical Formula

While comparing Tortoiseshell 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 Tortoiseshell and Bertrandite chemical formula.

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  • Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Tortoiseshell and Bertrandite Specific Gravity

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