Astrophyllite and Magnesite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Effervesces in hot HCl
Durability
Not Available
Not Available
Specific Gravity
3.2-3.4
2.92-3.12
Fracture
Uneven, Brittle, Metallic
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Perfect on [001] imperfect on [100]
[10 1 1] perfect
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Astrophyllite and Magnesite Chemical Formula
While comparing Astrophyllite and Magnesite 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 Magnesite 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 Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Astrophyllite and Magnesite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Astrophyllite and Magnesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Magnesite Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 2.92-3.12 whereas that of Magnesite is 2.92-3.12.