Adamite and Lazulite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.32-4.48
  
3.04-3.17
  
Fracture
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
  
Uneven, Uneven, Gemstones of the world (2001) More from other references
  
Cleavage
{101}, good; {010}, poor
  
{001} Indistinct, {???} Indistinct
  
Mohs Hardness
3.5
  
5.5
  
Chemical Composition
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
  
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
  
Adamite and Lazulite Chemical Formula
While comparing Adamite and Lazulite 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 Adamite and Lazulite chemical formula.
- Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
- Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Adamite and Lazulite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Adamite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adamite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Adamite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.