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Augite
Augite

Star Sapphire
Star Sapphire



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Augite
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Star Sapphire

Augite and Star Sapphire 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
3.19-3.563.90-4.05
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Not Available
1.6 Cleavage
{110} Perfect, {010} Indistinct
Not Available
1.7 Mohs Hardness
5.5-6Not Available
Amber
2 10
1.8 Chemical Composition
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Al 2O 3Ulrich Henn and Claudio C.

Augite and Star Sapphire Chemical Formula

While comparing Augite and Star 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 Augite and Star Sapphire chemical formula.

  • Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
  • Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Augite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Augite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Augite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.