Cacoxenite and Common Opal Physical Properties

Cacoxenite

Common Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.2-2.61.98-2.50

1 7.18

1.5 Fracture

Uneven

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

3-45.5-6.5

2 10

1.8 Chemical Composition

(Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Cacoxenite and Common Opal Chemical Formula

While comparing Cacoxenite and Common Opal 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 Cacoxenite and Common Opal chemical formula.

Chemical formula of Cacoxenite- (Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)
Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Compare Green Gemstones

Cacoxenite Vs Aegirine

Cacoxenite Vs Actinolite

Cacoxenite Vs Adamite

Cacoxenite and Common Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cacoxenite and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cacoxenite and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Cacoxenite is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.