Iolite and Mellite Physical Properties

Iolite

Mellite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.71.58-1.60

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

3,1

{011} Imperfect

1.7 Mohs Hardness

7-7.52

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Iolite and Mellite Chemical Formula

While comparing Iolite and Mellite 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 Mellite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

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Iolite and Mellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Mellite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 1.58-1.60 whereas that of Mellite is 1.58-1.60.