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Brookite
Brookite

Pleonast
Pleonast



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Brookite
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Pleonast

Brookite and Pleonast Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.87-4.14-9999
1 7.18
👆🏻

Fracture

Subconchoidal, Conchoidal
-

Cleavage

Poor on {120}, in traces on {001}
Perfect

Mohs Hardness

5.5-6-9999
2 10
👆🏻

Chemical Composition

TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
MgAl2O4

Brookite and Pleonast Chemical Formula

While comparing Brookite and Pleonast 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 Pleonast chemical formula.

  • Chemical formula of Brookite- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Pleonast- MgAl2O4

Brookite and Pleonast Specific Gravity

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