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Amethyst
Amethyst

Augelite
Augelite



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Amethyst
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Augelite

Amethyst and Augelite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
insoluble in common solvents
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.652.70-2.75
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Indiscernible
From the Greek for luster, for its pearly luster on the cleavage.
1.7 Mohs Hardness
74.5-5
Amber
2 10
1.8 Chemical Composition
SiO2
Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Amethyst and Augelite Chemical Formula

While comparing Amethyst and Augelite 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 Amethyst and Augelite chemical formula.

  • Chemical formula of Amethyst- SiO2
  • Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Amethyst and Augelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Augelite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 2.70-2.75 whereas that of Augelite is 2.70-2.75.