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Labradorite
Labradorite

Star Sapphire
Star Sapphire



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Labradorite
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Star Sapphire

Labradorite 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
2.69-2.723.90-4.05
Amber
1 7.18
1.5 Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Not Available
1.6 Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Not Available
1.7 Mohs Hardness
6-6.5Not Available
Amber
2 10
1.8 Chemical Composition
(Na,Ca)1-2Si3-2O8
Al 2O 3Ulrich Henn and Claudio C.

Labradorite and Star Sapphire Chemical Formula

While comparing Labradorite 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 Labradorite and Star Sapphire chemical formula.

  • Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
  • Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Labradorite and Star Sapphire Specific Gravity

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