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Lazurite
Lazurite

Eosphorite
Eosphorite



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Lazurite
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Eosphorite

Lazurite and Eosphorite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.753.05-3.08
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Subconchoidal, Uneven, Conchoidal

Cleavage

Imperfect on {110}
Poor on {100}

Mohs Hardness

5.55
2 10
👆🏻

Chemical Composition

(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Mn2+ Al(PO 4)(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Lazurite and Eosphorite Chemical Formula

While comparing Lazurite and Eosphorite 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 Eosphorite chemical formula.

  • Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
  • Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Lazurite and Eosphorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazurite and Eosphorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Eosphorite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 3.05-3.08 whereas that of Eosphorite is 3.05-3.08.