Scheelite and Cinnabar Physical Properties

Scheelite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Brittle

Slightly sectile

1.2 Solubility

Not Available

1.04 x 10⁻²⁵ g per 100 ml water (Ksp at 25°C = 2 x 10⁻³²)

1.3 Durability

Not Available

1.4 Specific Gravity

5.9-6.32

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

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

Prismatic {10 1 0}, perfect

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

HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Scheelite and Cinnabar Chemical Formula

While comparing Scheelite and Cinnabar 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 Cinnabar chemical formula.

Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Scheelite and Cinnabar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scheelite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scheelite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Scheelite is 2 whereas that of Cinnabar is 2.