Iddingsite and Iolite Physical Properties

Iddingsite

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

2.5-2.82.6-2.7

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

{???} Perfect

3,1

1.7 Mohs Hardness

37-7.5

2 10

1.8 Chemical Composition

MgO.Fe2O3.3SiO2•4(H2O)

Mg₂Al₄Si₅O₁₈

Iddingsite and Iolite Chemical Formula

While comparing Iddingsite 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 Iddingsite and Iolite chemical formula.

Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Iddingsite and Iolite Specific Gravity

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