Astrophyllite and Carletonite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.2-3.4
2.45
Fracture
Uneven, Brittle, Metallic
Conchoidal, Conchoidal, Brittle
Cleavage
Perfect on [001] imperfect on [100]
Perfect on {001}, good on {110}
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Astrophyllite and Carletonite Chemical Formula
While comparing Astrophyllite and Carletonite 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 Carletonite 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 Carletonite- KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Astrophyllite and Carletonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Astrophyllite and Carletonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Carletonite Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 2.45 whereas that of Carletonite is 2.45.