Cryolite and Anhydrite Physical Properties

Cryolite

Anhydrite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.972.90-2.98

1 7.18

1.5 Fracture

Uneven

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

None observed

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

1.7 Mohs Hardness

2.53.5

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Cryolite and Anhydrite Chemical Formula

While comparing Cryolite and Anhydrite 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 Cryolite and Anhydrite chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Cryolite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.