Gypsum and Anglesite Physical Properties

Gypsum

Anglesite

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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

2.20-2.406.30-6.39

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect on {010}, distinct on {100}

[001] good, [210] distinct

1.7 Mohs Hardness

23-3.5

2 10

1.8 Chemical Composition

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

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

Gypsum and Anglesite Chemical Formula

While comparing Gypsum and Anglesite 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 Anglesite chemical formula.

Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Anglesite- PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Gypsum and Anglesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Anglesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Anglesite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 6.30-6.39 whereas that of Anglesite is 6.30-6.39.