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Schorl
Schorl

Tortoiseshell
Tortoiseshell



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Schorl
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Tortoiseshell

Schorl and Tortoiseshell 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
3.18-3.221.25-1.35
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Not Available
1.6 Cleavage
{1011} Indistinct
Not Available
1.7 Mohs Hardness
Not AvailableNot Available
Amber
2 10
1.8 Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Not Available

Schorl and Tortoiseshell Chemical Formula

While comparing Schorl and Tortoiseshell 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 Schorl and Tortoiseshell chemical formula.

  • Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
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Schorl and Tortoiseshell Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Tortoiseshell Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Tortoiseshell Optical Properties during the identification of gemstone. Specific gravity of Schorl is 1.25-1.35 whereas that of Tortoiseshell is 1.25-1.35.