Povondraite and Pyroxmangite Physical Properties

Povondraite

Pyroxmangite

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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

3.263.76-3.77

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

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

1.6 Cleavage

None

{110} Perfect, {110} Perfect

1.7 Mohs Hardness

Not Available5-6

2 10

1.8 Chemical Composition

NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

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

Povondraite and Pyroxmangite Chemical Formula

While comparing Povondraite and Pyroxmangite 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 Povondraite and Pyroxmangite chemical formula.

Chemical formula of Povondraite- NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Pyroxmangite- (Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.

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Povondraite and Pyroxmangite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Povondraite and Pyroxmangite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Povondraite and Pyroxmangite Optical Properties during the identification of gemstone. Specific gravity of Povondraite is 3.76-3.77 whereas that of Pyroxmangite is 3.76-3.77.