Spodumene and Iolite Physical Properties

Spodumene

Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.212.6-2.7

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

Not Available

1.6 Cleavage

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

3,1

1.7 Mohs Hardness

6-77-7.5

2 10

1.8 Chemical Composition

LiAlSi₂O₆

Mg₂Al₄Si₅O₁₈

Spodumene and Iolite Chemical Formula

While comparing Spodumene 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 Spodumene and Iolite chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Spodumene and Iolite Specific Gravity

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