Jet lignite and Sard Physical Properties

Jet lignite

Sard

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.30-1.342.58-2.63

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

1.7 Mohs Hardness

2.56.5-7

2 10

1.8 Chemical Composition

Not Available

SiO 2Ulrich Henn and Claudio C.

Jet lignite and Sard Chemical Formula

While comparing Jet lignite and Sard 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 Jet lignite and Sard chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.

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Jet lignite and Sard Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jet lignite and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jet lignite and Sard Optical Properties during the identification of gemstone. Specific gravity of Jet lignite is 2.58-2.63 whereas that of Sard is 2.58-2.63.