Brookite and Gaspeite Physical Properties

Brookite

Gaspeite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.87-4.143.71

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

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

{10 1 1} Good

1.7 Mohs Hardness

5.5-64.5-5

2 10

1.8 Chemical Composition

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

(Ni,Mg,Fe++)CO3

Brookite and Gaspeite Chemical Formula

While comparing Brookite and Gaspeite 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 Gaspeite chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Gaspeite- (Ni,Mg,Fe++)CO3

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Brookite and Gaspeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Gaspeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Gaspeite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3.71 whereas that of Gaspeite is 3.71.