Gahnospinel and Brookite Physical Properties

Gahnospinel

Brookite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.65-4.553.87-4.14

1 7.18

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Fracture

Conchoidal

Subconchoidal, Conchoidal

Cleavage

None, but may exhibit slight parting

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

Mohs Hardness

7.5-85.5-6

2 10

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Chemical Composition

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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

Gahnospinel and Brookite Chemical Formula

While comparing Gahnospinel 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 Gahnospinel and Brookite chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Gahnospinel Vs Jeremejevite

Gahnospinel Vs Lazurite

Gahnospinel Vs Linarite

Gahnospinel and Brookite Specific Gravity

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