Serandite and Boulder Opal Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.52
  
1.98-2.25
  
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
{100} Perfect, {001} Perfect
  
Not Available
  
Mohs Hardness
5-5.5
  
5-6.5
  
Chemical Composition
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
  
SiO 2 + H 2OUlrich Henn and Claudio C.
  
Serandite and Boulder Opal Chemical Formula
While comparing Serandite and Boulder Opal 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 Serandite and Boulder Opal chemical formula.
- Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Serandite and Boulder Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Serandite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Serandite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Serandite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.