Gypsum and Brucite Physical Properties
Tenacity
Flexible
Sectile
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.20-2.40
2.39
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
Irregular
Cleavage
Perfect on {010}, distinct on {100}
Perfect on {0001}
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Gypsum and Brucite Chemical Formula
While comparing Gypsum and Brucite 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 Brucite chemical formula.
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Gypsum and Brucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gypsum and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Brucite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 2.39 whereas that of Brucite is 2.39.