Strontianite and Ruby Physical Properties

Strontianite

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

3.63-3.793.97-4.05

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

{110} Good

No true cleavage

1.7 Mohs Hardness

3.59

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Strontianite and Ruby Chemical Formula

While comparing Strontianite 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 Strontianite and Ruby chemical formula.

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

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Strontianite and Ruby Specific Gravity

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