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Rock Crystal
Rock Crystal

Apophyllite
Apophyllite



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Rock Crystal
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Apophyllite

Rock Crystal and Apophyllite 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)
 
-
-
-
2.30-2.50
Uneven
Perfect on (001)
4.5-5
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Rock Crystal and Apophyllite Chemical Formula

While comparing Rock Crystal and Apophyllite 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 Apophyllite chemical formula.

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Rock Crystal and Apophyllite Specific Gravity

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