Oligoclase and Marialite Physical Properties

Oligoclase

Marialite

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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

2.62-2.672.50

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

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

1.6 Cleavage

From the Greek, oligos and kasein, little cleavage.

Distinct on {100} and {110}

1.7 Mohs Hardness

6-6.55.5-6

2 10

1.8 Chemical Composition

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Oligoclase and Marialite Chemical Formula

While comparing Oligoclase 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 Oligoclase and Marialite chemical formula.

Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Compare Colorless Gems

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Oligoclase Vs Pezzottaite

Oligoclase Vs Phosphophyllite

Oligoclase and Marialite Specific Gravity

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