Shattuckite and Gypsum Physical Properties

Shattuckite

Gypsum

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1 Physical Properties

1.1 Tenacity

Not Available

Flexible

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.80-4.152.20-2.40

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

perfect along [010] and [100]

Perfect on {010}, distinct on {100}

1.7 Mohs Hardness

3.5-42

2 10

1.8 Chemical Composition

Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Shattuckite and Gypsum Chemical Formula

While comparing Shattuckite and Gypsum 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 Shattuckite and Gypsum chemical formula.

Chemical formula of Shattuckite- Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

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Shattuckite and Gypsum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Shattuckite and Gypsum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shattuckite and Gypsum Optical Properties during the identification of gemstone. Specific gravity of Shattuckite is 2.20-2.40 whereas that of Gypsum is 2.20-2.40.