Eosphorite and Lazurite Physical Properties
Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.05-3.08
2.75
Fracture
Subconchoidal, Uneven, Conchoidal, Uneven
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Poor on {100}
Imperfect on {110}
Mohs Hardness
5
5.5
Chemical Composition
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Eosphorite and Lazurite Chemical Formula
While comparing Eosphorite 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 Eosphorite and Lazurite chemical formula.
- Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Eosphorite and Lazurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Eosphorite and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eosphorite and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Eosphorite is 2.75 whereas that of Lazurite is 2.75.
