Anhydrite and Nephrite Physical Properties

Anhydrite

Nephrite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.982.90-3.10

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

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

1.6 Cleavage

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Not Available

1.7 Mohs Hardness

3.56-6.5

2 10

1.8 Chemical Composition

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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

Anhydrite and Nephrite Chemical Formula

While comparing Anhydrite 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 Anhydrite and Nephrite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
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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Anhydrite and Nephrite Specific Gravity

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