Astrophyllite and Simpsonite 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
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Perfect on [001] imperfect on [100]
None
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Astrophyllite and Simpsonite Chemical Formula
While comparing Astrophyllite and Simpsonite 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 Simpsonite 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 Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Astrophyllite and Simpsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Astrophyllite and Simpsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Simpsonite Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is Not Available whereas that of Simpsonite is Not Available.