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Apophyllite
Apophyllite
☒

Fayalite
Fayalite
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Apophyllite
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Fayalite

Apophyllite and Fayalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.30-2.50
Uneven
Perfect on (001)
4.5-5
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
 
-
-
-
4.392
Conchoidal
{010} moderate, {100} imperfect
6.5-7
Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Apophyllite and Fayalite Chemical Formula

While comparing Apophyllite and Fayalite 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 Apophyllite and Fayalite chemical formula.

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Apophyllite and Fayalite Specific Gravity

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