Gypsum and Nephrite Physical Properties

Gypsum

Nephrite

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1 Physical Properties

1.1 Tenacity

Flexible

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.20-2.402.90-3.10

1 7.18

1.5 Fracture

Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)

Splintery, Granular, Splintery, Granular, Gemstones (2009)

1.6 Cleavage

Perfect on {010}, distinct on {100}

Not Available

1.7 Mohs Hardness

26-6.5

2 10

1.8 Chemical Composition

CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Gypsum and Nephrite Chemical Formula

While comparing Gypsum and Nephrite 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 Gypsum and Nephrite chemical formula.

Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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Gypsum and Nephrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.