Phlogopite and Gahnospinel Physical Properties

Phlogopite

Gahnospinel

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1 Physical Properties

1.1 Tenacity

Tough

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.853.65-4.55

1 7.18

1.5 Fracture

None, Uneven

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect basal (001)

None, but may exhibit slight parting

1.7 Mohs Hardness

2-2.57.5-8

2 10

1.8 Chemical Composition

Not Available

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

Phlogopite and Gahnospinel Chemical Formula

While comparing Phlogopite 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 Phlogopite and Gahnospinel chemical formula.

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

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Phlogopite and Gahnospinel Specific Gravity

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