Augelite and Dumortierite Physical Properties

Augelite

Dumortierite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.70-2.753.26-3.41

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

From the Greek for luster, for its pearly luster on the cleavage.

Distinct on {100}, poor on {110}; parting on {001}

1.7 Mohs Hardness

4.5-57-8.5

2 10

1.8 Chemical Composition

Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

AlAl₆O₃BSi₃O₁₈

Augelite and Dumortierite Chemical Formula

While comparing Augelite and Dumortierite 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 Augelite and Dumortierite chemical formula.

Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Augelite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augelite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Augelite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.