Gypsum and Pleonaste Physical Properties

Gypsum

Pleonaste

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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

2.20-2.403.80

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Perfect on {010}, distinct on {100}

Not Available

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

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

(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

Gypsum and Pleonaste Chemical Formula

While comparing Gypsum and Pleonaste 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 Pleonaste chemical formula.

Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Pleonaste- (Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)

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Gypsum and Pleonaste Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Pleonaste Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Pleonaste Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 3.80 whereas that of Pleonaste is 3.80.