Gypsum and Sanidine Physical Properties

Gypsum

Sanidine

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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)

2.54-2.61

Uneven

{001} Perfect, {010} Good

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Gypsum and Sanidine Chemical Formula

While comparing Gypsum and Sanidine 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 Sanidine chemical formula.

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Gypsum Vs Orthoclase

Gypsum and Sanidine Specific Gravity

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