Boracite and Cryolite Physical Properties

Boracite

Cryolite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.95-2.962.97

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

None

None observed

1.7 Mohs Hardness

7-7.52.5

2 10

1.8 Chemical Composition

Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Na 3AlF 6Ulrich Henn and Claudio C.

Boracite and Cryolite Chemical Formula

While comparing Boracite and Cryolite 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 Boracite and Cryolite chemical formula.

Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

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Boracite and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boracite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boracite and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Boracite is 2.97 whereas that of Cryolite is 2.97.