Simpsonite and Poudretteite Physical Properties

Simpsonite

Poudretteite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.51-2.53

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Conchoidal, Splintery

1.6 Cleavage

None

1.7 Mohs Hardness

7-7.55

2 10

1.8 Chemical Composition

Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Simpsonite and Poudretteite Chemical Formula

While comparing Simpsonite 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 Simpsonite and Poudretteite chemical formula.

Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

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Simpsonite and Poudretteite Specific Gravity

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