Scolecite and Iolite Physical Properties

Scolecite

Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.20-2.232.6-2.7

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Perfect on {110} and {1 1 0}

3,1

1.7 Mohs Hardness

5-5.57-7.5

2 10

1.8 Chemical Composition

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

Mg₂Al₄Si₅O₁₈

Scolecite and Iolite Chemical Formula

While comparing Scolecite and Iolite 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 Scolecite and Iolite chemical formula.

Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Scolecite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Scolecite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scolecite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Scolecite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.