Crocoite and Boulder Opal Physical Properties

Crocoite

Boulder Opal

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

5.90-6.10

Conchoidal

{110} Distinct, {001} Indistinct, {100} Indistinct

2.5-3

PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

1.98-2.25

Conchoidal

None

5-6.5

SiO 2 + H 2OUlrich Henn and Claudio C.

Crocoite and Boulder Opal Chemical Formula

While comparing Crocoite 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 Crocoite and Boulder Opal chemical formula.

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Crocoite and Boulder Opal Specific Gravity

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