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Cerussite
Cerussite

Labradorite
Labradorite



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Cerussite
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Cerussite and Labradorite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
insoluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
6.46-6.57
2.69-2.72
1.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Uneven, Conchoidal, Gems, Sixth Edition (2006)
1.6 Cleavage
Good [110] and [021]
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
1.7 Mohs Hardness
3-3.5
6-6.5
1.8 Chemical Composition
PbCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
(Na,Ca)1-2Si3-2O8

Cerussite and Labradorite Chemical Formula

While comparing Cerussite and Labradorite 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 Labradorite chemical formula.

  • Chemical formula of Cerussite- PbCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8

Cerussite and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cerussite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cerussite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Cerussite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.