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Brookite
Brookite

Bastnasite
Bastnasite



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Brookite
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Brookite and Bastnasite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.87-4.144.95-5.0
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
Uneven

Cleavage

Poor on {120}, in traces on {001}
Imperfect to indistinct on {10 1 0}, parting on {0001}

Mohs Hardness

5.5-64-5
2 10
👆🏻

Chemical Composition

TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
(Ce,La)(CO 3)FMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Brookite and Bastnasite Chemical Formula

While comparing Brookite and Bastnasite 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 Brookite and Bastnasite chemical formula.

  • Chemical formula of Brookite- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Bastnasite- (Ce,La)(CO 3)FMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Brookite and Bastnasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Bastnasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Bastnasite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 4.95-5.0 whereas that of Bastnasite is 4.95-5.0.