Cerussite and Ruby Physical Properties

Cerussite

Ruby

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.46-6.573.97-4.05

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

Good [110] and [021]

No true cleavage

1.7 Mohs Hardness

3-3.59

2 10

1.8 Chemical Composition

PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Al ₂ O ₃

Cerussite and Ruby Chemical Formula

While comparing Cerussite 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 Cerussite and Ruby chemical formula.

Chemical formula of Cerussite- PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Ruby- Al ₂ O ₃

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Cerussite and Ruby Specific Gravity

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