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Poudretteite
Poudretteite

Riebeckite
Riebeckite



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Poudretteite
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Riebeckite

Poudretteite and Riebeckite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.51-2.53
3.28-3.44
1.5 Fracture
Conchoidal, Splintery
Uneven, Splintery, Brittle
1.6 Cleavage
None
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
1.7 Mohs Hardness
5
5.0-6.0
1.8 Chemical Composition
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
Not Available

Poudretteite and Riebeckite Chemical Formula

While comparing Poudretteite and Riebeckite 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 Poudretteite and Riebeckite chemical formula.

  • Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
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Poudretteite and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poudretteite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.