Cryolite and Bustamite Physical Properties

Cryolite

Bustamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

2.973.32-3.43

1 7.18

1.5 Fracture

Uneven

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None observed

{100} perfect; {110} and {1 1 0} good; {010} poor

1.7 Mohs Hardness

2.55.5-6

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cryolite and Bustamite Chemical Formula

While comparing Cryolite and Bustamite 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 Bustamite chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cryolite and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.