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Agate Opal
Agate Opal

Pezzottaite
Pezzottaite



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Agate Opal
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Pezzottaite

Agate Opal and Pezzottaite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
 
-
-
-
2.90-3.14
Conchoidal, Uneven
Imperfect; basal
7.5-8
(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

Agate Opal and Pezzottaite Chemical Formula

While comparing Agate Opal and Pezzottaite 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 Agate Opal and Pezzottaite chemical formula.

  • Chemical formula of Agate Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  • Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

Agate Opal and Pezzottaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Agate Opal and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Agate Opal and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Agate Opal is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.