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Brookite
Brookite

Riebeckite
Riebeckite



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Brookite
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Riebeckite

Brookite and Riebeckite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.87-4.14
3.28-3.44
1.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Splintery, Brittle
1.6 Cleavage
Poor on {120}, in traces on {001}
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
1.7 Mohs Hardness
5.5-6
5.0-6.0
1.8 Chemical Composition
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Not Available

Brookite and Riebeckite Chemical Formula

While comparing Brookite and Riebeckite 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 Riebeckite chemical formula.

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

Another important criteria for qualitative analysis of gemstones is Brookite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.