Zinnwaldite and Gahnospinel Physical Properties

Zinnwaldite

Gahnospinel

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.9-3.13.65-4.55

1 7.18

1.5 Fracture

Uneven

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect basal {001}

None, but may exhibit slight parting

1.7 Mohs Hardness

3.5-4.07.5-8

2 10

1.8 Chemical Composition

Not Available

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

Zinnwaldite and Gahnospinel Chemical Formula

While comparing Zinnwaldite and Gahnospinel 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 Zinnwaldite and Gahnospinel chemical formula.

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

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Zinnwaldite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zinnwaldite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zinnwaldite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Zinnwaldite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.