Poudretteite and Marialite Physical Properties

Poudretteite

Marialite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.51-2.532.50

1 7.18

1.5 Fracture

Conchoidal, Splintery

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

1.6 Cleavage

None

Distinct on {100} and {110}

1.7 Mohs Hardness

55.5-6

2 10

1.8 Chemical Composition

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

3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Poudretteite and Marialite Chemical Formula

While comparing Poudretteite and Marialite 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 Marialite chemical formula.

Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Compare Violet Gemstones

Poudretteite Vs Rutilated Quartz

Poudretteite Vs Rubellite

Poudretteite Vs Sapphire

Poudretteite and Marialite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poudretteite and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Marialite Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 2.50 whereas that of Marialite is 2.50.