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Brookite
Brookite

Feldspar
Feldspar



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Brookite and Feldspar Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.87-4.14
2.56-2.75
1.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
1.6 Cleavage
Poor on {120}, in traces on {001}
two or three
1.7 Mohs Hardness
5.5-6
6-6.5
1.8 Chemical Composition
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Not Available

Brookite and Feldspar Chemical Formula

While comparing Brookite and Feldspar 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 Feldspar chemical formula.

  • Chemical formula of Brookite- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
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Brookite and Feldspar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.