Gahnospinel and Bustamite Physical Properties

Gahnospinel

Bustamite

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Physical Properties

Tenacity

Solubility

Partly soluble in HCl.

Durability

Specific Gravity

3.65-4.553.32-3.43

1 7.18

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Fracture

Conchoidal

Cleavage

None, but may exhibit slight parting

{100} perfect; {110} and {1 1 0} good; {010} poor

Mohs Hardness

7.5-85.5-6

2 10

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Chemical Composition

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

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Gahnospinel and Bustamite Chemical Formula

While comparing Gahnospinel and Bustamite 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 Bustamite chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Gahnospinel Vs Jeremejevite

Gahnospinel Vs Lazurite

Gahnospinel Vs Linarite

Gahnospinel and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.