Cerussite and Precious Opal Physical Properties

Cerussite

Precious Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.46-6.571.98-2.25

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references

1.6 Cleavage

Good [110] and [021]

Not Available

1.7 Mohs Hardness

3-3.55-6.5

2 10

1.8 Chemical Composition

PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO 2 · nH 2OGemdat.org , Management Team (2012)

Cerussite and Precious Opal Chemical Formula

While comparing Cerussite and Precious 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 Cerussite and Precious Opal chemical formula.

Chemical formula of Cerussite- PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)

Compare Brown Gemstones

Cerussite Vs Diamond

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Cerussite Vs Cubic Zirconia

Cerussite and Precious Opal Specific Gravity

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