Sapphire and Axinite Physical Properties

Sapphire

Axinite

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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

3.95-4.033.26-3.36

1 7.18

1.10 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.11 Cleavage

None, but may exhibit parting

Good on {100}

1.12 Mohs Hardness

96.5-7

2 10

2.4 Chemical Composition

Al ₂ O ₃

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

Sapphire and Axinite Chemical Formula

While comparing Sapphire and Axinite 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 Axinite chemical formula.

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

Sapphire and Axinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Axinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Axinite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.26-3.36 whereas that of Axinite is 3.26-3.36.