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Cerussite
Cerussite

Phlogopite
Phlogopite



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Cerussite
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Phlogopite

Cerussite and Phlogopite Physical Properties

Physical Properties

Tenacity

-
Tough

Solubility

insoluble
-

Durability

-
-

Specific Gravity

6.46-6.572.78-2.85
1 7.18
👆🏻

Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal
Uneven

Cleavage

Good [110] and [021]
Perfect basal (001)

Mohs Hardness

3-3.52-2.5
2 10
👆🏻

Chemical Composition

PbCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
KMg3(Si3Al)O10(F,OH)2

Cerussite and Phlogopite Chemical Formula

While comparing Cerussite and Phlogopite 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 Phlogopite chemical formula.

  • Chemical formula of Cerussite- PbCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Phlogopite- KMg3(Si3Al)O10(F,OH)2

Cerussite and Phlogopite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cerussite and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cerussite and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Cerussite is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.