Anhydrite and Scolecite Physical Properties

Anhydrite

Scolecite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.982.20-2.23

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven

1.6 Cleavage

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

Perfect on {110} and {1 1 0}

1.7 Mohs Hardness

3.55-5.5

2 10

1.8 Chemical Composition

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

CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Anhydrite and Scolecite Chemical Formula

While comparing Anhydrite and Scolecite 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 Anhydrite and Scolecite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

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Anhydrite and Scolecite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Scolecite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Scolecite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 2.20-2.23 whereas that of Scolecite is 2.20-2.23.