Gahnospinel and Austinite Physical Properties

Gahnospinel

Austinite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Easily soluble in cold dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

3.65-4.554.12

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

None, but may exhibit slight parting

Good in two directions parallel to the prism faces {110}

1.7 Mohs Hardness

7.5-84-4.5

2 10

1.8 Chemical Composition

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

CaZn(AsO4)(OH)

Gahnospinel and Austinite Chemical Formula

While comparing Gahnospinel and Austinite 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 Austinite chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Austinite- CaZn(AsO4)(OH)

Compare Blue Gemstones

Gahnospinel Vs Indicolite Blue Tourmaline

Gahnospinel Vs Hydrogrossular

Gahnospinel Vs Jeremejevite

Gahnospinel and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Austinite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 4.12 whereas that of Austinite is 4.12.