Gypsum and Antigorite Physical Properties

Gypsum

Antigorite

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Physical Properties

Tenacity

Flexible

Solubility

Soluble

Durability

Specific Gravity

2.20-2.402.58-2.80

1 7.18

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Fracture

Conchoidal, Splintery, Fibrous

Conchoidal

Cleavage

Perfect on {010}, distinct on {100}

{001} Good

Mohs Hardness

25-5.5

2 10

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Chemical Composition

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

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Gypsum and Antigorite Chemical Formula

While comparing Gypsum and Antigorite 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 Antigorite chemical formula.

Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Compare Colorless Gems

Gypsum Vs Muscovite

Gypsum Vs Oligoclase

Gypsum Vs Orthoclase

Gypsum and Antigorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Antigorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Antigorite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 2.58-2.80 whereas that of Antigorite is 2.58-2.80.