Marialite and Anhydrite Physical Properties

Marialite

Anhydrite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.502.90-2.98

1 7.18

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Fracture

Uneven, Conchoidal

Conchoidal

Cleavage

Distinct on {100} and {110}

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Mohs Hardness

5.5-63.5

2 10

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Chemical Composition

3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Marialite and Anhydrite Chemical Formula

While comparing Marialite and Anhydrite 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 Marialite and Anhydrite chemical formula.

Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Marialite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marialite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marialite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Marialite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.