Astrophyllite and Chrysoberyl Physical Properties

Astrophyllite and Chrysoberyl Chemical Formula

While comparing Astrophyllite and Chrysoberyl 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 Chrysoberyl 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 Chrysoberyl- BeAl ₂ O ₄

Astrophyllite and Chrysoberyl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Astrophyllite and Chrysoberyl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Chrysoberyl Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 3.69-3.81 whereas that of Chrysoberyl is 3.69-3.81.