Andesine and Astrophyllite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65-2.69
3.2-3.4
Fracture
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
Uneven, Brittle, Metallic
Cleavage
Perfect on {001}, good on {010}
Perfect on [001] imperfect on [100]
Chemical Composition
(Na,Ca)Al1-2Si3-2O8
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Andesine and Astrophyllite Chemical Formula
While comparing Andesine 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 Andesine and Astrophyllite chemical formula.
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Andesine and Astrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andesine and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andesine and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Andesine is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.