Plumbogummite and Brookite Physical Properties

Plumbogummite

Brookite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.0143.87-4.14

1 7.18

1.5 Fracture

Uneven, Conchoidal

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

None

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

1.7 Mohs Hardness

4-55.5-6

2 10

1.8 Chemical Composition

Not Available

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Plumbogummite and Brookite Chemical Formula

While comparing Plumbogummite and Brookite 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 Plumbogummite and Brookite chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Plumbogummite and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Plumbogummite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Plumbogummite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Plumbogummite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.