Sardonyx and Hematite Physical Properties

Sardonyx

Hematite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.705.00-5.30

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

6.5-76

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

Fe 2O 3Arthur Thomas , Gemstones (2009)

Sardonyx and Hematite Chemical Formula

While comparing Sardonyx 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 Sardonyx and Hematite chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Sardonyx and Hematite Specific Gravity

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