Anorthite and Marialite Physical Properties

Anorthite

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

2.772.50

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

Perfect [001] good [010] poor [110]

Distinct on {100} and {110}

1.7 Mohs Hardness

6-6.55.5-6

2 10

1.8 Chemical Composition

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Anorthite and Marialite Chemical Formula

While comparing Anorthite 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 Anorthite and Marialite chemical formula.

Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

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Anorthite and Marialite Specific Gravity

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