Scolecite and Poudretteite Physical Properties

Scolecite

Poudretteite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.20-2.232.51-2.53

1 7.18

1.5 Fracture

Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven

Conchoidal, Splintery

1.6 Cleavage

Perfect on {110} and {1 1 0}

None

1.7 Mohs Hardness

5-5.55

2 10

1.8 Chemical Composition

CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

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

Scolecite and Poudretteite Chemical Formula

While comparing Scolecite 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 Scolecite and Poudretteite chemical formula.

Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

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Scolecite and Poudretteite Specific Gravity

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