Iolite and Gaylussite Physical Properties

Iolite

Gaylussite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

decomposes in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.71.93-1.99

1 7.18

1.5 Fracture

Not Available

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

3,1

perfect [110]

1.7 Mohs Hardness

7-7.52.5

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

Na2Ca(CO3)2•5(H2O)

Iolite and Gaylussite Chemical Formula

While comparing Iolite and Gaylussite 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 Gaylussite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Gaylussite- Na2Ca(CO3)2•5(H2O)

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Iolite and Gaylussite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Gaylussite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Gaylussite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 1.93-1.99 whereas that of Gaylussite is 1.93-1.99.