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Emerald
Emerald

Lazurite
Lazurite



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Emerald
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Lazurite

Emerald and Lazurite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Hard
Not Available
1.4 Specific Gravity
2.67-2.782.75
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
Imperfect on the [0001]
Imperfect on {110}
1.7 Mohs Hardness
7.5-85.5
Amber
2 10
1.8 Chemical Composition
Be3Al2SiO6
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Emerald and Lazurite Chemical Formula

While comparing Emerald and Lazurite 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 Emerald and Lazurite chemical formula.

  • Chemical formula of Emerald- Be3Al2SiO6
  • Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Emerald and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.75 whereas that of Lazurite is 2.75.