Gypsum and Diaspore Physical Properties
Tenacity
Flexible
Very brittle
Solubility
Soluble
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.20-2.40
3.30-3.40
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
Conchoidal, Brittle, Conchoidal
Cleavage
Perfect on {010}, distinct on {100}
{010} perfect, {110} distinct, {100} in traces
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Gypsum and Diaspore Chemical Formula
While comparing Gypsum and Diaspore 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 Diaspore chemical formula.
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Gypsum and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gypsum and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.