Ruby and Oligoclase Physical Properties

Ruby

Oligoclase

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.052.62-2.67

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

No true cleavage

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

96-6.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Ruby and Oligoclase Chemical Formula

While comparing Ruby and Oligoclase 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 Ruby and Oligoclase chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Ruby and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.