Sardonyx and Wulfenite Physical Properties

Sardonyx

Wulfenite

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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

2.55-2.706.50-7.00

1 7.18

1.5 Fracture

Not Available

Irregular, Brittle, Conchoidal

1.6 Cleavage

Not Available

On {011}, distinct; on {001}, {013}, indistinct

1.7 Mohs Hardness

6.5-73

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

PbMoO 4Walter Schumann , Gemstones of the world (2001)

Sardonyx and Wulfenite Chemical Formula

While comparing Sardonyx and Wulfenite 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 Wulfenite chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)

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Sardonyx and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sardonyx and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sardonyx and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Sardonyx is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.