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Tortoiseshell
Tortoiseshell

Prehnite
Prehnite



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Tortoiseshell
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Prehnite

Tortoiseshell and Prehnite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

1.25-1.352.80-2.95
1 7.18
👆🏻

Fracture

-
Uneven

Cleavage

None
Distinct on [001]

Mohs Hardness

-99996-6.5
2 10
👆🏻

Chemical Composition

-
Ca2Al2Si3O12(OH)

Tortoiseshell and Prehnite Chemical Formula

While comparing Tortoiseshell and Prehnite 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 Prehnite chemical formula.

  • Chemical formula of Tortoiseshell- -
  • Chemical formula of Prehnite- Ca2Al2Si3O12(OH)

Tortoiseshell and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tortoiseshell and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tortoiseshell and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Tortoiseshell is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.