Ruby and Povondraite Physical Properties

Ruby

Povondraite

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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

3.97-4.053.26

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

No true cleavage

None

1.7 Mohs Hardness

9Not Available

2 10

1.8 Chemical Composition

Al ₂ O ₃

NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

Ruby and Povondraite Chemical Formula

While comparing Ruby and Povondraite 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 Povondraite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Povondraite- NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

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Ruby and Povondraite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Povondraite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Povondraite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.26 whereas that of Povondraite is 3.26.