Pearl and Ruby Physical Properties

Pearl

Ruby

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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

2.60-2.85

3.97-4.05

1.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

Conchoidal

1.6 Cleavage

none

No true cleavage

1.7 Mohs Hardness

2.5-4.5

1.8 Chemical Composition

Not Available

Al ₂ O ₃

Pearl and Ruby Chemical Formula

While comparing Pearl 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 Pearl and Ruby chemical formula.

Chemical formula of Ruby- Al ₂ O ₃

Compare Blue Gemstones

Pearl Vs Prase Opal

Pearl Vs Precious Opal

Pearl Vs Prase

Pearl and Ruby Specific Gravity

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