Hematite and Cryolite Physical Properties

Hematite

Cryolite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.302.97

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

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

None observed

1.7 Mohs Hardness

62.5

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

Na 3AlF 6Ulrich Henn and Claudio C.

Hematite and Cryolite Chemical Formula

While comparing Hematite 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 Hematite and Cryolite chemical formula.

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

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Hematite and Cryolite Specific Gravity

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