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Carnelian
Carnelian

Cerussite
Cerussite



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Carnelian
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Cerussite

Carnelian and Cerussite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
insoluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.58-2.64
6.46-6.57
1.5 Fracture
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
1.6 Cleavage
Absent
Good [110] and [021]
1.7 Mohs Hardness
6.5-7
3-3.5
1.8 Chemical Composition
SiO2
PbCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Carnelian and Cerussite Chemical Formula

While comparing Carnelian and Cerussite 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 Carnelian and Cerussite chemical formula.

  • Chemical formula of Carnelian- SiO2
  • Chemical formula of Cerussite- PbCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Carnelian and Cerussite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carnelian and Cerussite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carnelian and Cerussite Optical Properties during the identification of gemstone. Specific gravity of Carnelian is 6.46-6.57 whereas that of Cerussite is 6.46-6.57.