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Astrophyllite
Astrophyllite

Hackmanite
Hackmanite



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Astrophyllite
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Hackmanite

Astrophyllite and Hackmanite 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)
 
-
-
-
2.27-2.33
-
Perfect
5.5-6
Na 8Al 6Si 6O 24Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Astrophyllite and Hackmanite Chemical Formula

While comparing Astrophyllite and Hackmanite 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 Hackmanite chemical formula.

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Astrophyllite and Hackmanite Specific Gravity

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