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Bastnasite
Bastnasite

Phlogopite
Phlogopite



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Bastnasite
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Phlogopite

Bastnasite and Phlogopite Physical Properties

Physical Properties

Tenacity

-
Tough

Solubility

-
-

Durability

-
-

Specific Gravity

4.95-5.02.78-2.85
1 7.18
👆🏻

Fracture

Uneven
Uneven

Cleavage

Imperfect to indistinct on {10 1 0}, parting on {0001}
Perfect basal (001)

Mohs Hardness

4-52-2.5
2 10
👆🏻

Chemical Composition

(Ce,La)(CO 3)FMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
KMg3(Si3Al)O10(F,OH)2

Bastnasite and Phlogopite Chemical Formula

While comparing Bastnasite 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 Bastnasite and Phlogopite chemical formula.

  • Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Phlogopite- KMg3(Si3Al)O10(F,OH)2

Bastnasite and Phlogopite Specific Gravity

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