Gypsum and Celestine Physical Properties

Gypsum

Celestine

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1 Physical Properties

1.1 Tenacity

Flexible

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.20-2.403.90-4.00

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect on {010}, distinct on {100}

Perfect on {001}, good on {210}, poor on {010}

1.7 Mohs Hardness

23-3.5

2 10

1.8 Chemical Composition

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

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Gypsum and Celestine Chemical Formula

While comparing Gypsum and Celestine 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 Celestine chemical formula.

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

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Gypsum and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Celestine Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 3.90-4.00 whereas that of Celestine is 3.90-4.00.