Pezzottaite and Obsidian Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.90-3.14
  
2.35-2.60
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Conchoidal, ConchoidalWalter Schumann, Conchoidal
  
Cleavage
Imperfect; basal
  
Not Available
  
Mohs Hardness
7.5-8
  
5-5.5
  
Chemical Composition
(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
  
Not Available
  
Pezzottaite and Obsidian Chemical Formula
While comparing Pezzottaite and Obsidian 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 Pezzottaite and Obsidian chemical formula.
- Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
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Pezzottaite and Obsidian Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pezzottaite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.