Zoisite and Mellite Physical Properties

Zoisite

Mellite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.20-3.501.58-1.60

1 7.18

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Fracture

Uneven, Conchoidal, Even

Conchoidal

Cleavage

Perfect {010} imperfect {100}

{011} Imperfect

Mohs Hardness

6-72

2 10

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Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Zoisite and Mellite Chemical Formula

While comparing Zoisite 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 Zoisite and Mellite chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Compare Brown Gemstones

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Zoisite Vs Pyrrhotite

Zoisite Vs Vesuvianite

Zoisite and Mellite Specific Gravity

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