Lazulite and Childrenite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.04-3.17
  
3.06-3.25
  
Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
  
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
  
Cleavage
{001} Indistinct, {???} Indistinct
  
Poor/indistinct on {100}
  
Mohs Hardness
5.5
  
4.5-5
  
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
  
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
  
Lazulite and Childrenite Chemical Formula
While comparing Lazulite 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 Lazulite and Childrenite chemical formula.
- Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Lazulite and Childrenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lazulite and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Lazulite is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.