Cryolite and Andalusite Physical Properties

Cryolite

Andalusite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.973.05-3.21

1 7.18

1.5 Fracture

Uneven

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

None observed

Good on {110}, poor on {100}

1.7 Mohs Hardness

2.57.5

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Cryolite and Andalusite Chemical Formula

While comparing Cryolite and Andalusite 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 Andalusite chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Cryolite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.