Spessartine and Iolite Physical Properties

Spessartine

Iolite

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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

4.12-4.182.6-2.7

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Conchoidal, Brittle

Not Available

1.6 Cleavage

{???} Distinct

3,1

1.7 Mohs Hardness

7-7.57-7.5

2 10

1.8 Chemical Composition

Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Mg₂Al₄Si₅O₁₈

Spessartine and Iolite Chemical Formula

While comparing Spessartine 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 Spessartine and Iolite chemical formula.

Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Spessartine and Iolite Specific Gravity

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