Gypsum and Bustamite Physical Properties

Gypsum

Bustamite

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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)

Partly soluble in HCl.

3.32-3.43

Conchoidal

{100} perfect; {110} and {1 1 0} good; {010} poor

5.5-6

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Gypsum and Bustamite Chemical Formula

While comparing Gypsum and Bustamite 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 Bustamite chemical formula.

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Gypsum and Bustamite Specific Gravity

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