Sardonyx and Sellaite Physical Properties

Sardonyx

Sellaite

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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

2.55-2.703.14-3.16

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

Not Available

Perfect on {010} and {110}

1.7 Mohs Hardness

6.5-75-5.5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

MgF 2Ulrich Henn and Claudio C.

Sardonyx and Sellaite Chemical Formula

While comparing Sardonyx and Sellaite 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 Sellaite chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.

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Sardonyx and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sardonyx and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Sellaite Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 3.14-3.16 whereas that of Sellaite is 3.14-3.16.