Rosasite and Iolite Physical Properties

Rosasite

Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.22.6-2.7

1 7.18

1.5 Fracture

Splintery

Not Available

1.6 Cleavage

Perfect on {100} and {010}

3,1

1.7 Mohs Hardness

47-7.5

2 10

1.8 Chemical Composition

Not Available

Mg₂Al₄Si₅O₁₈

Rosasite and Iolite Chemical Formula

While comparing Rosasite 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 Rosasite and Iolite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Rosasite and Iolite Specific Gravity

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