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Rock Crystal
Rock Crystal

Augelite
Augelite



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Rock Crystal
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Augelite

Rock Crystal and Augelite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
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
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Not Available
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
SiO 2Walter Schumann , Gemstones of the world (2001)
Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Rock Crystal and Augelite Chemical Formula

While comparing Rock Crystal 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 Rock Crystal and Augelite chemical formula.

  • Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
  • Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Rock Crystal and Augelite Specific Gravity

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