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Star Sapphire
Star Sapphire

Atacamite
Atacamite



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Star Sapphire
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Atacamite

Star Sapphire and Atacamite 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
3.90-4.053.745-3.776
Amber
1 7.18
1.5 Fracture
Not Available
Conchoidal, Conchoidal, Brittle
1.6 Cleavage
Not Available
Perfect on {010}, fair on {101}
1.7 Mohs Hardness
Not Available3-3.5
Amber
2 10
1.8 Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
Cu2Cl(OH)3

Star Sapphire and Atacamite Chemical Formula

While comparing Star Sapphire and Atacamite 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 Atacamite chemical formula.

  • Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
  • Chemical formula of Atacamite- Cu2Cl(OH)3

Star Sapphire and Atacamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Atacamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Atacamite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 3.745-3.776 whereas that of Atacamite is 3.745-3.776.