Axinite and Sapphire Physical Properties

Axinite

Sapphire

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.26-3.363.95-4.03

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Good on {100}

None, but may exhibit parting

1.7 Mohs Hardness

6.5-79

2 10

1.8 Chemical Composition

(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Al ₂ O ₃

Axinite and Sapphire Chemical Formula

While comparing Axinite and Sapphire 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 Axinite and Sapphire chemical formula.

Chemical formula of Axinite- (Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Sapphire- Al ₂ O ₃

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Axinite and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Axinite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Axinite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Axinite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.