Cryolite and Oligoclase Physical Properties

Cryolite

Oligoclase

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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

2.972.62-2.67

1 7.18

1.5 Fracture

Uneven

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

1.6 Cleavage

None observed

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

2.56-6.5

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Cryolite and Oligoclase Chemical Formula

While comparing Cryolite and Oligoclase 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 Oligoclase chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Cryolite and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.