Crocoite and Boulder Opal Physical Properties

Crocoite

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

5.90-6.101.98-2.25

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

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

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

2.5-35-6.5

2 10

1.8 Chemical Composition

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

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.

Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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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 and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Crocoite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.