Chrysoberyl and Astrophyllite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.69-3.81
3.2-3.4
Fracture
Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic
Uneven, Brittle, Metallic
Cleavage
Distinct on {110}, imperfect on {010}, poor on {001}
Perfect on [001] imperfect on [100]
Chemical Composition
BeAl 2 O 4
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Chrysoberyl and Astrophyllite Chemical Formula
While comparing Chrysoberyl 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 Chrysoberyl and Astrophyllite chemical formula.
- Chemical formula of Chrysoberyl- BeAl 2 O 4
- Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Chrysoberyl and Astrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrysoberyl and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoberyl and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Chrysoberyl is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.