Variscite and Lazulite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.42-2.58
  
3.04-3.17
  
Fracture
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
  
Uneven, Uneven, Gemstones of the world (2001) More from other references
  
Cleavage
[010] perfect
  
{001} Indistinct, {???} Indistinct
  
Mohs Hardness
4-5
  
5.5
  
Chemical Composition
AlPO4 · 2(H2O)
  
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
  
Variscite and Lazulite Chemical Formula
While comparing Variscite 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 Variscite and Lazulite chemical formula.
- Chemical formula of Variscite- AlPO4 · 2(H2O)
- Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Variscite and Lazulite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Variscite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Variscite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Variscite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.