Astrophyllite and Rhodolite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.2-3.4
  
3.84
  
Fracture
Uneven, Brittle, Metallic
  
Conchoidal
  
Cleavage
Perfect on [001] imperfect on [100]
  
none, may show indistinct parting
  
Mohs Hardness
3
  
7-7.5
  
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
  
(Mg,Fe)3Al2Si3O12
  
Astrophyllite and Rhodolite Chemical Formula
While comparing Astrophyllite and Rhodolite 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 Rhodolite chemical formula.
- Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Rhodolite- (Mg,Fe)3Al2Si3O12
Astrophyllite and Rhodolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Astrophyllite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 3.84 whereas that of Rhodolite is 3.84.