Ruby and Strontianite Physical Properties

Ruby

Strontianite

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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

3.97-4.053.63-3.79

1 7.18

1.5 Fracture

Conchoidal

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

No true cleavage

{110} Good

1.7 Mohs Hardness

93.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references

Ruby and Strontianite Chemical Formula

While comparing Ruby and Strontianite 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 Strontianite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Strontianite- SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references

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Ruby and Strontianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Strontianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Strontianite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.63-3.79 whereas that of Strontianite is 3.63-3.79.