Gahnospinel and Shigaite Physical Properties

Gahnospinel

Shigaite

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1 Physical Properties

1.1 Tenacity

Not Available

Moderately ﬂexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.65-4.552.32

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

Flexible Flexible fragments.

1.6 Cleavage

None, but may exhibit slight parting

Perfect on {0001}

1.7 Mohs Hardness

7.5-82

2 10

1.8 Chemical Composition

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

Not Available

Gahnospinel and Shigaite Chemical Formula

While comparing Gahnospinel and Shigaite 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 Shigaite chemical formula.

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

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Gahnospinel and Shigaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Shigaite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 2.32 whereas that of Shigaite is 2.32.