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Gypsum
Gypsum

Prase
Prase



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Gypsum
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Prase

Gypsum and Prase Physical Properties

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1 Physical Properties
1.1 Tenacity
Flexible
Not Available
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.20-2.402.64-2.69
Amber
1 7.18
1.5 Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
1.6 Cleavage
Perfect on {010}, distinct on {100}
Not Available
1.7 Mohs Hardness
27
Amber
2 10
1.8 Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
SiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Gypsum and Prase Chemical Formula

While comparing Gypsum and Prase 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 Prase chemical formula.

  • Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
  • Chemical formula of Prase- SiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Gypsum and Prase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Prase Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 2.64-2.69 whereas that of Prase is 2.64-2.69.