Poldervaartite and Pyroxmangite Physical Properties

Poldervaartite

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

2.913.76-3.77

1 7.18

1.5 Fracture

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

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

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

Poldervaartite and Pyroxmangite Chemical Formula

While comparing Poldervaartite 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 Poldervaartite and Pyroxmangite chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Pyroxmangite- (Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.

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Poldervaartite and Pyroxmangite Specific Gravity

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