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Iolite
Iolite

Prehnite
Prehnite



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Iolite
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Prehnite

Iolite and Prehnite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.6-2.72.80-2.95
Amber
1 7.18
1.5 Fracture
Not Available
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
1.6 Cleavage
3,1
Distinct on [001]
1.7 Mohs Hardness
7-7.56-6.5
Amber
2 10
1.8 Chemical Composition
Mg2Al4Si5O18
Ca2Al2Si3O12(OH)

Iolite and Prehnite Chemical Formula

While comparing Iolite and Prehnite 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 Prehnite chemical formula.

  • Chemical formula of Iolite- Mg2Al4Si5O18
  • Chemical formula of Prehnite- Ca2Al2Si3O12(OH)

Iolite and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.