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Elbaite
Elbaite

Polyhalite
Polyhalite



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Elbaite
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Elbaite and Polyhalite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.90-3.10
2.78
1.5 Fracture
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal, Brittle
1.6 Cleavage
Poor/indistinct on {1120} and {1011}
Perfect on {10 1 }; parting on {010}
1.7 Mohs Hardness
7
3.5
1.8 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 Polyhalite Chemical Formula

While comparing Elbaite and Polyhalite 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 Polyhalite 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 Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Polyhalite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 2.78 whereas that of Polyhalite is 2.78.