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Brookite
Brookite

Grandidierite
Grandidierite



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Brookite
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Grandidierite

Brookite and Grandidierite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.87-4.14
Subconchoidal, Conchoidal
Poor on {120}, in traces on {001}
5.5-6
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
2.85-3.00
Uneven
Perfect
7.5
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Brookite and Grandidierite Chemical Formula

While comparing Brookite and Grandidierite 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 Grandidierite chemical formula.

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Brookite and Grandidierite Specific Gravity

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