Helenite and Bowenite Physical Properties
Tenacity
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Solubility
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Durability
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Specific Gravity
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2.58-2.80
  
Fracture
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Uneven, Irregular, Management Team (2012)
  
Cleavage
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Mohs Hardness
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5.5
  
Chemical Composition
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(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
  
Helenite and Bowenite Chemical Formula
While comparing Helenite and Bowenite 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 Helenite and Bowenite chemical formula.
>- Chemical formula of Bowenite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Helenite and Bowenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Helenite and Bowenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Helenite and Bowenite Optical Properties during the identification of gemstone. Specific gravity of Helenite is 2.58-2.80 whereas that of Bowenite is 2.58-2.80.