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Legrandite
Legrandite

Star Sapphire
Star Sapphire



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Legrandite
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Star Sapphire

Legrandite and Star Sapphire Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.98-4.043.90-4.05
Amber
1 7.18
1.5 Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Not Available
1.6 Cleavage
Imperfect, poor one {100}
Not Available
1.7 Mohs Hardness
4.5-5Not Available
Amber
2 10
1.8 Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Al 2O 3Ulrich Henn and Claudio C.

Legrandite and Star Sapphire Chemical Formula

While comparing Legrandite 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 Legrandite and Star Sapphire chemical formula.

  • Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Legrandite and Star Sapphire Specific Gravity

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