Piemontite and Marialite Physical Properties

Piemontite

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

Not Available2.50

1 7.18

1.5 Fracture

Uneven, Splintery

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

1.6 Cleavage

[001] good, [100] distinct

Distinct on {100} and {110}

1.7 Mohs Hardness

6-6.55.5-6

2 10

1.8 Chemical Composition

Not Available

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

Piemontite and Marialite Chemical Formula

While comparing Piemontite 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 Piemontite and Marialite chemical formula.

Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

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Piemontite and Marialite Specific Gravity

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