Pyroxmangite and Vivianite Physical Properties

Pyroxmangite

Vivianite

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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

3.76-3.772.64-2.70

1 7.18

1.5 Fracture

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

(e.g. graphite).

1.6 Cleavage

{110} Perfect, {110} Perfect

{010} Perfect

1.7 Mohs Hardness

5-6Not Available

2 10

1.8 Chemical Composition

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

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Pyroxmangite and Vivianite Chemical Formula

While comparing Pyroxmangite and Vivianite 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 Vivianite chemical formula.

Chemical formula of Pyroxmangite- (Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Pyroxmangite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyroxmangite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyroxmangite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Pyroxmangite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.