Ruby and Friedelite Physical Properties

Ruby

Friedelite

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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

3.97-4.053.06-3.19

1 7.18

1.5 Fracture

Conchoidal

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

1.6 Cleavage

No true cleavage

{010} Perfect

1.7 Mohs Hardness

94-5

2 10

1.8 Chemical Composition

Al ₂ O ₃

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

Ruby and Friedelite Chemical Formula

While comparing Ruby and Friedelite 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 Friedelite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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Ruby and Friedelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.