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Brookite
Brookite

Smithsonite
Smithsonite



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Brookite
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Smithsonite

Brookite and Smithsonite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

3.87-4.144.00-4.65
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
Uneven, Sub-Conchoidal

Cleavage

Poor on {120}, in traces on {001}
Perfect on [1011]

Mohs Hardness

5.5-65-5.5
2 10
👆🏻

Chemical Composition

TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Brookite and Smithsonite Chemical Formula

While comparing Brookite and Smithsonite 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 Smithsonite chemical formula.

  • Chemical formula of Brookite- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Smithsonite- ZnCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Brookite and Smithsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Smithsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Smithsonite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 4.00-4.65 whereas that of Smithsonite is 4.00-4.65.