Iolite and Demantoid Physical Properties

Iolite

Demantoid

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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

2.6-2.73.77-3.95

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

3,1

Not Available

1.7 Mohs Hardness

7-7.56.5

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

Iolite and Demantoid Chemical Formula

While comparing Iolite and Demantoid 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 Demantoid chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Demantoid- Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

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Iolite and Demantoid Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Demantoid Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Demantoid Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.77-3.95 whereas that of Demantoid is 3.77-3.95.