Gypsum and Hibschite Physical Properties

Gypsum

Hibschite

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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

2.20-2.403.05-3.08

1 7.18

2.4 Fracture

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

Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle

2.5 Cleavage

Perfect on {010}, distinct on {100}

None

2.6 Mohs Hardness

26.5

2 10

2.9 Chemical Composition

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

Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

Gypsum and Hibschite Chemical Formula

While comparing Gypsum and Hibschite 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 Hibschite chemical formula.

Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

Compare Colorless Gems

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Gypsum Vs Hurlbutite

Gypsum Vs Hibschite

Gypsum and Hibschite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Hibschite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Hibschite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 3.05-3.08 whereas that of Hibschite is 3.05-3.08.