Ruby and Vivianite Physical Properties

Ruby

Vivianite

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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

3.97-4.052.64-2.70

1 7.18

1.5 Fracture

Conchoidal

(e.g. graphite).

1.6 Cleavage

No true cleavage

{010} Perfect

1.7 Mohs Hardness

9Not Available

2 10

1.8 Chemical Composition

Al ₂ O ₃

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Ruby and Vivianite Chemical Formula

While comparing Ruby and Vivianite 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 Vivianite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Ruby and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.