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Pearl
Pearl

Brookite
Brookite



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Pearl
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Brookite

Pearl and Brookite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.60-2.853.87-4.14
1 7.18
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Fracture

-
Subconchoidal, Conchoidal

Cleavage

none
Poor on {120}, in traces on {001}

Mohs Hardness

2.5-4.55.5-6
2 10
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Chemical Composition

CaCO3
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pearl and Brookite Chemical Formula

While comparing Pearl and Brookite 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 Pearl and Brookite chemical formula.

  • Chemical formula of Pearl- CaCO3
  • Chemical formula of Brookite- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pearl and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pearl and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pearl and Brookite Optical Properties during the identification of gemstone. Specific gravity of Pearl is 3.87-4.14 whereas that of Brookite is 3.87-4.14.