Elbaite and Scheelite Physical Properties

Elbaite

Scheelite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.105.9-6.3

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Uneven

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

On {101}, distinct; on {112}, interrupted; on {001}, indistinct

1.7 Mohs Hardness

74.5-5

2 10

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

CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Elbaite and Scheelite Chemical Formula

While comparing Elbaite and Scheelite 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 Scheelite 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
Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Elbaite and Scheelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Elbaite and Scheelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Elbaite and Scheelite Optical Properties during the identification of gemstone. Specific gravity of Elbaite is 5.9-6.3 whereas that of Scheelite is 5.9-6.3.