Ruby and Norbergite Physical Properties

Ruby

Norbergite

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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

3.97-4.053.177

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

No true cleavage

{???} Distinct

1.7 Mohs Hardness

96-6.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)

Ruby and Norbergite Chemical Formula

While comparing Ruby and Norbergite 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 Norbergite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)

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Ruby and Norbergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Norbergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Norbergite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.177 whereas that of Norbergite is 3.177.