Pyroxmangite and Gahnite Physical Properties

Pyroxmangite

Gahnite

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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

3.76-3.774.00-4.62

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

Conchoidal, Uneven

1.6 Cleavage

{110} Perfect, {110} Perfect

Indistinct parting on [111]

1.7 Mohs Hardness

5-67.5-8

2 10

1.8 Chemical Composition

(Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Pyroxmangite and Gahnite Chemical Formula

While comparing Pyroxmangite and Gahnite 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 Pyroxmangite and Gahnite chemical formula.

Chemical formula of Pyroxmangite- (Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.
Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Pyroxmangite and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyroxmangite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyroxmangite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Pyroxmangite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.