Hematite and Sylvite Physical Properties

Hematite

Sylvite

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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

5.00-5.301.993

1 7.18

1.5 Fracture

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

Uneven, Brittle

1.6 Cleavage

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

Perfect on [100], [010], [001]

1.7 Mohs Hardness

62.5

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

Not Available

Hematite and Sylvite Chemical Formula

While comparing Hematite and Sylvite 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 Sylvite chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Hematite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hematite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Hematite is 1.993 whereas that of Sylvite is 1.993.