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Brookite
Brookite

Plumbogummite
Plumbogummite



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Brookite
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Plumbogummite

Brookite and Plumbogummite 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
 
Brittle
Soluble
-
4.014
Uneven, Conchoidal
None
4-5
PbAl3(PO4)(SO4)(OH)6

Brookite and Plumbogummite Chemical Formula

While comparing Brookite and Plumbogummite 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 Plumbogummite chemical formula.

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Brookite and Plumbogummite Specific Gravity

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