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Cavansite
Cavansite

Poudretteite
Poudretteite



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Cavansite
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Poudretteite

Cavansite and Poudretteite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.25-2.332.51-2.53
1 7.18
👆🏻

Fracture

-
Conchoidal, Splintery

Cleavage

Good on {010}
None

Mohs Hardness

3-45
2 10
👆🏻

Chemical Composition

Ca(VO)Si4O10•4(H2O)
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)

Cavansite and Poudretteite Chemical Formula

While comparing Cavansite and Poudretteite 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 Cavansite and Poudretteite chemical formula.

  • Chemical formula of Cavansite- Ca(VO)Si4O10•4(H2O)
  • Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)

Cavansite and Poudretteite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cavansite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cavansite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Cavansite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.