Gypsum and Dravite Physical Properties

Gypsum

Dravite

Add ⊕

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Flexible

Soluble

2.20-2.40

Conchoidal, Splintery, Fibrous

Perfect on {010}, distinct on {100}

CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

3.03-3.18

Uneven, Irregular, Conchoidal

{???} Indistinct

7-7.5

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Gypsum and Dravite Chemical Formula

While comparing Gypsum and Dravite 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 Dravite chemical formula.

Compare Colorless Gems

Gypsum Vs Muscovite

Gypsum Vs Oligoclase

Gypsum Vs Orthoclase

Gypsum and Dravite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum Vs Dravite during the identification of gemstone. Specific gravity of Gypsum is whereas that of Dravite is .