Iolite and Serandite Physical Properties

Iolite

Serandite

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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

2.6-2.73.52

1 7.18

1.5 Fracture

Not Available

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

3,1

{100} Perfect, {001} Perfect

1.7 Mohs Hardness

7-7.55-5.5

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

Iolite and Serandite Chemical Formula

While comparing Iolite and Serandite 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 Serandite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

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Iolite and Serandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Serandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Serandite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.52 whereas that of Serandite is 3.52.