Opal Ethiopia and Achroite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
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Not Available
  
Durability
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Not Available
  
Specific Gravity
Not Available
  
2.90-3.40
  
Fracture
Not Available
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Not Available
  
Not Available
  
Mohs Hardness
5.5-6.5
  
7-7.5
  
Chemical Composition
Not Available
  
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
  
Opal Ethiopia and Achroite Chemical Formula
While comparing Opal Ethiopia and Achroite 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 Opal Ethiopia and Achroite chemical formula.
>- Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Opal Ethiopia and Achroite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Opal Ethiopia and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal Ethiopia and Achroite Optical Properties during the identification of gemstone. Specific gravity of Opal Ethiopia is 2.90-3.40 whereas that of Achroite is 2.90-3.40.