Oligoclase and Brucite Physical Properties

Oligoclase

Brucite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.62-2.672.39

1 7.18

1.5 Fracture

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

Irregular

1.6 Cleavage

From the Greek, oligos and kasein, little cleavage.

Perfect on {0001}

1.7 Mohs Hardness

6-6.52.5

2 10

1.8 Chemical Composition

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

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Oligoclase and Brucite Chemical Formula

While comparing Oligoclase and Brucite 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 Brucite 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 Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Colorless Gems

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Oligoclase Vs Phosphophyllite

Oligoclase and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Oligoclase and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Oligoclase and Brucite Optical Properties during the identification of gemstone. Specific gravity of Oligoclase is 2.39 whereas that of Brucite is 2.39.