Gypsum and Sphalerite Physical Properties

Gypsum

Sphalerite

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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)

3.95-4.10

Uneven

{110} Perfect, {110} Perfect, {110} Perfect

3.5-4

(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Gypsum and Sphalerite Chemical Formula

While comparing Gypsum and Sphalerite 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 Sphalerite chemical formula.

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Gypsum and Sphalerite Specific Gravity

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