Allanite and Gahnospinel Physical Properties

Allanite

Gahnospinel

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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

3.40-4.203.65-4.55

1 7.18

1.5 Fracture

Not Available

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

None, but may exhibit slight parting

1.7 Mohs Hardness

Not Available7.5-8

2 10

1.8 Chemical Composition

Not Available

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

Allanite and Gahnospinel Chemical Formula

While comparing Allanite 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 Allanite and Gahnospinel chemical formula.

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

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Allanite and Gahnospinel Specific Gravity

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