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Astrophyllite
Astrophyllite

Benitoite
Benitoite



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Astrophyllite
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Benitoite

Astrophyllite and Benitoite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.2-3.4
Uneven
Perfect on [001] imperfect on [100]
3
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
 
-
Insoluble: HCl
-
3.61-3.68
Conchoidal
[10 1 1] poor
6-6.5
BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Astrophyllite and Benitoite Chemical Formula

While comparing Astrophyllite and Benitoite 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 Benitoite chemical formula.

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Astrophyllite and Benitoite Specific Gravity

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