Astrophyllite and Swiss blue topaz Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.2-3.4
  
Not Available
  
Fracture
Uneven, Brittle, Metallic
  
Not Available
  
Cleavage
Perfect on [001] imperfect on [100]
  
Not Available
  
Mohs Hardness
3
  
Not Available
  
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
  
Not Available
  
Astrophyllite and Swiss blue topaz Chemical Formula
While comparing Astrophyllite and Swiss blue topaz 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 Astrophyllite and Swiss blue topaz chemical formula.
- Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
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Astrophyllite and Swiss blue topaz Specific Gravity
Another important criteria for qualitative analysis of gemstones is Astrophyllite and Swiss blue topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Swiss blue topaz Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is Not Available whereas that of Swiss blue topaz is Not Available.