Elbaite and Tortoiseshell Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.10
1.25-1.35
Fracture
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Not Available
Cleavage
Poor/indistinct on {1120} and {1011}
Not Available
Mohs Hardness
7
Not Available
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Not Available
Elbaite and Tortoiseshell Chemical Formula
While comparing Elbaite 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 Elbaite and Tortoiseshell chemical formula.
- Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
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Elbaite and Tortoiseshell Specific Gravity
Another important criteria for qualitative analysis of gemstones is Elbaite and Tortoiseshell Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Tortoiseshell Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 1.25-1.35 whereas that of Tortoiseshell is 1.25-1.35.