Ruby and Fluorite Physical Properties

Ruby

Fluorite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

slightly water soluble and in hot hydrochloric acid

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.053.00-3.25

1 7.18

1.5 Fracture

Conchoidal

Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

No true cleavage

Octahedral, perfect on {111}, parting on {011}

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al ₂ O ₃

CaF₂

Ruby and Fluorite Chemical Formula

While comparing Ruby and Fluorite 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 Fluorite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Fluorite- CaF₂

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Ruby and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.