Iolite and Fibrolite Physical Properties

Iolite

Fibrolite

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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

2.6-2.73.14-3.25

1 7.18

1.5 Fracture

Not Available

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

3,1

Not Available

1.7 Mohs Hardness

7-7.56-7

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

Al 2SiO 5Arthur Thomas , Gemstones (2009)

Iolite and Fibrolite Chemical Formula

While comparing Iolite and Fibrolite 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 Fibrolite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)

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Iolite and Fibrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.