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Star Sapphire
Star Sapphire

Piemontite
Piemontite



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Star Sapphire
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Piemontite

Star Sapphire and Piemontite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.90-4.05Not Available
Amber
1 7.18
1.5 Fracture
Not Available
Uneven, Splintery
1.6 Cleavage
Not Available
[001] good, [100] distinct
1.7 Mohs Hardness
Not Available6-6.5
Amber
2 10
1.8 Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
Not Available

Star Sapphire and Piemontite Chemical Formula

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

  • Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
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Star Sapphire and Piemontite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Piemontite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Piemontite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is Not Available whereas that of Piemontite is Not Available.