Phlogopite and Ruby Physical Properties

Phlogopite

Ruby

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1 Physical Properties

1.1 Tenacity

Tough

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.85

3.97-4.05

1.5 Fracture

None, Uneven

Conchoidal

1.6 Cleavage

Perfect basal (001)

No true cleavage

1.7 Mohs Hardness

2-2.5

1.8 Chemical Composition

Not Available

Al ₂ O ₃

Phlogopite and Ruby Chemical Formula

While comparing Phlogopite and Ruby 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 Phlogopite and Ruby chemical formula.

Chemical formula of Ruby- Al ₂ O ₃

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Phlogopite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.