Gahnospinel and Ajoite Physical Properties

Gahnospinel

Ajoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Decomposed by acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.65-4.552.96

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

None, but may exhibit slight parting

Perfect on {010}

1.7 Mohs Hardness

7.5-85

2 10

1.8 Chemical Composition

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

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Gahnospinel and Ajoite Chemical Formula

While comparing Gahnospinel and Ajoite 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 Ajoite chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Compare Blue Gemstones

Gahnospinel Vs Jeremejevite

Gahnospinel Vs Indicolite Blue Tourmaline

Gahnospinel Vs Hydrogrossular

Gahnospinel and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 2.96 whereas that of Ajoite is 2.96.