Gypsum and Star Ruby Physical Properties
Tenacity
Flexible
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.20-2.40
3.95-4.10
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Perfect on {010}, distinct on {100}
Not Available
Mohs Hardness
2
Not Available
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Gypsum and Star Ruby Chemical Formula
While comparing Gypsum and Star Ruby 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 Star Ruby chemical formula.
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Gypsum and Star Ruby Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gypsum and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.