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Lazurite
Lazurite

Hurlbutite
Hurlbutite



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Lazurite
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Hurlbutite

Lazurite and Hurlbutite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.752.90
Amber
1 7.18
1.5 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
1.6 Cleavage
Imperfect on {110}
None
1.7 Mohs Hardness
5.56
Amber
2 10
1.8 Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
CaBe 2(PO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Lazurite and Hurlbutite Chemical Formula

While comparing Lazurite and Hurlbutite 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 Lazurite and Hurlbutite chemical formula.

  • Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
  • Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Lazurite and Hurlbutite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Hurlbutite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 2.90 whereas that of Hurlbutite is 2.90.