Sard and Wulfenite Physical Properties

Sard

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

2.58-2.636.50-7.00

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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)

Sard and Wulfenite Chemical Formula

While comparing Sard 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 Sard and Wulfenite chemical formula.

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

Compare Blue Gemstones

Sard Vs Spinel

Sard Vs Sodalite

Sard Vs Sillimanite

Sard and Wulfenite Specific Gravity

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