Pyroxmangite and Astrophyllite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.76-3.77
  
3.2-3.4
  
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Uneven, Brittle, Metallic
  
Cleavage
{110} Perfect, {110} Perfect
  
Perfect on [001] imperfect on [100]
  
Mohs Hardness
5-6
  
3
  
Chemical Composition
(Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.
  
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
  
Pyroxmangite and Astrophyllite Chemical Formula
While comparing Pyroxmangite and Astrophyllite 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 Pyroxmangite and Astrophyllite chemical formula.
- Chemical formula of Pyroxmangite- (Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.
- Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Pyroxmangite and Astrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyroxmangite and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyroxmangite and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Pyroxmangite is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.