Ruby and Fire Opal Physical Properties

Ruby

Fire Opal

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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

3.97-4.051.97-2.22

1 7.18

1.5 Fracture

Conchoidal

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

No true cleavage

Not Available

1.7 Mohs Hardness

96-6.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Ruby and Fire Opal Chemical Formula

While comparing Ruby and Fire Opal 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 Fire Opal chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

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Ruby and Fire Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Fire Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Fire Opal Optical Properties during the identification of gemstone. Specific gravity of Ruby is 1.97-2.22 whereas that of Fire Opal is 1.97-2.22.