Jade and Iolite Physical Properties

Jade

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

2.90-3.382.6-2.7

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Not Available

1.6 Cleavage

1 or 2,2 prismatic.

3,1

1.7 Mohs Hardness

6-77-7.5

2 10

1.8 Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

Mg₂Al₄Si₅O₁₈

Jade and Iolite Chemical Formula

While comparing Jade 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 Jade and Iolite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Jade and Iolite Specific Gravity

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