Astrophyllite and Lizardite Physical Properties

Astrophyllite and Lizardite Chemical Formula

While comparing Astrophyllite and Lizardite 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 Lizardite 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 Lizardite- Mg 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Astrophyllite and Lizardite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Astrophyllite and Lizardite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Lizardite Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 2.55 whereas that of Lizardite is 2.55.