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Tortoiseshell
Tortoiseshell

Lazurite
Lazurite



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Tortoiseshell
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Lazurite

Tortoiseshell and Lazurite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

1.25-1.352.75
1 7.18
👆🏻

Fracture

-
Uneven, Conchoidal

Cleavage

None
Imperfect on {110}

Mohs Hardness

-99995.5
2 10
👆🏻

Chemical Composition

-
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Tortoiseshell and Lazurite Chemical Formula

While comparing Tortoiseshell and Lazurite 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 Lazurite chemical formula.

  • Chemical formula of Tortoiseshell- -
  • Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Tortoiseshell and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tortoiseshell and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tortoiseshell and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Tortoiseshell is 2.75 whereas that of Lazurite is 2.75.