Sapphire and Rhodolite Physical Properties

Sapphire

Rhodolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.033.84

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Conchoidal

1.6 Cleavage

None, but may exhibit parting

none, may show indistinct parting

1.7 Mohs Hardness

97-7.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

(Mg,Fe)₃Al₂Si₃O₁₂

Sapphire and Rhodolite Chemical Formula

While comparing Sapphire and Rhodolite 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 Sapphire and Rhodolite chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Sapphire and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.84 whereas that of Rhodolite is 3.84.