Iolite and Marialite Physical Properties

Iolite

Marialite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.72.50

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

3,1

Distinct on {100} and {110}

1.7 Mohs Hardness

7-7.55.5-6

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

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

Iolite and Marialite Chemical Formula

While comparing Iolite and Marialite 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 Iolite and Marialite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

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Iolite and Marialite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Marialite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.50 whereas that of Marialite is 2.50.