Lazurite and Childrenite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.75
3.06-3.25
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
Cleavage
Imperfect on {110}
Poor/indistinct on {100}
Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Lazurite and Childrenite Chemical Formula
While comparing Lazurite and Childrenite 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 Childrenite chemical formula.
- Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Lazurite and Childrenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lazurite and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazurite and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Lazurite is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.