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Elbaite and Demantoid Physical Properties


Demantoid and Elbaite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.90-3.10   
3.77-3.95   

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   
6.5   

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   
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Elbaite and Demantoid Chemical Formula

While comparing Elbaite and Demantoid 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 Demantoid chemical formula.

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Elbaite and Demantoid Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Demantoid Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Demantoid Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 3.77-3.95 whereas that of Demantoid is 3.77-3.95.

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