Cacoxenite and Boulder Opal Physical Properties

Cacoxenite

Boulder 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

2.2-2.61.98-2.25

1 7.18

1.5 Fracture

Uneven

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

3-45-6.5

2 10

1.8 Chemical Composition

(Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

SiO 2 + H 2OUlrich Henn and Claudio C.

Cacoxenite and Boulder Opal Chemical Formula

While comparing Cacoxenite and Boulder 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 Boulder Opal chemical formula.

Chemical formula of Cacoxenite- (Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)
Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Green Gemstones

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Cacoxenite Vs Actinolite

Cacoxenite Vs Aegirine

Cacoxenite and Boulder Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cacoxenite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cacoxenite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Cacoxenite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.