Cryolite and Hematite Physical Properties

Cryolite

Hematite

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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

2.975.00-5.30

1 7.18

1.5 Fracture

Uneven

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

None observed

None, may show partings on {0001} and {10 1 1}

1.7 Mohs Hardness

2.56

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

Fe 2O 3Arthur Thomas , Gemstones (2009)

Cryolite and Hematite Chemical Formula

While comparing Cryolite and Hematite 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 Hematite chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Cryolite and Hematite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Hematite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Hematite Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 5.00-5.30 whereas that of Hematite is 5.00-5.30.