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Rock Crystal
Rock Crystal

Astrophyllite
Astrophyllite



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Rock Crystal
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Astrophyllite

Rock Crystal and Astrophyllite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.65
ConchoidalWalter Schumann
None
7
SiO 2Walter Schumann , Gemstones of the world (2001)
 
-
-
-
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)

Rock Crystal and Astrophyllite Chemical Formula

While comparing Rock Crystal and Astrophyllite 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 Rock Crystal and Astrophyllite chemical formula.

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Rock Crystal and Astrophyllite Specific Gravity

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