Gahnospinel and Gibbsite Physical Properties

Gahnospinel

Gibbsite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.65-4.552.35

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

Fibrous, Difficult, Fibrous

1.6 Cleavage

None, but may exhibit slight parting

{001} Perfect

1.7 Mohs Hardness

7.5-82.5-3

2 10

1.8 Chemical Composition

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

Al(OH)3

Gahnospinel and Gibbsite Chemical Formula

While comparing Gahnospinel and Gibbsite 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 Gibbsite chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Gibbsite- Al(OH)3

Compare Blue Gemstones

Gahnospinel Vs Hydrogrossular

Gahnospinel Vs Jeremejevite

Gahnospinel Vs Indicolite Blue Tourmaline

Gahnospinel and Gibbsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Gibbsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Gibbsite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 2.35 whereas that of Gibbsite is 2.35.