Scheelite and Ettringite Physical Properties

Scheelite

Ettringite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

5.9-6.31.77

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

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

Perfect on {10 1 0}

1.7 Mohs Hardness

4.5-52-2.5

2 10

1.8 Chemical Composition

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

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Scheelite and Ettringite Chemical Formula

While comparing Scheelite and Ettringite 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 Scheelite and Ettringite chemical formula.

Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Scheelite and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scheelite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scheelite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Scheelite is 1.77 whereas that of Ettringite is 1.77.