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Ruby
Ruby

Gypsum
Gypsum



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Ruby
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Gypsum

Ruby and Gypsum Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Flexible
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.97-4.052.20-2.40
Amber
1 7.18
1.5 Fracture
Conchoidal
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
1.6 Cleavage
No true cleavage
Perfect on {010}, distinct on {100}
1.7 Mohs Hardness
92
Amber
2 10
1.8 Chemical Composition
Al 2 O 3
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Ruby and Gypsum Chemical Formula

While comparing Ruby and Gypsum 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 Ruby and Gypsum chemical formula.

  • Chemical formula of Ruby- Al 2 O 3
  • Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Ruby and Gypsum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Gypsum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Gypsum Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.20-2.40 whereas that of Gypsum is 2.20-2.40.