Vivianite and Eosphorite Physical Properties

Vivianite

Eosphorite

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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

2.64-2.703.05-3.08

1 7.18

1.5 Fracture

(e.g. graphite).

Subconchoidal, Uneven, Conchoidal, Uneven

1.6 Cleavage

{010} Perfect

Poor on {100}

1.7 Mohs Hardness

Not Available5

2 10

1.8 Chemical Composition

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

Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Vivianite and Eosphorite Chemical Formula

While comparing Vivianite and Eosphorite 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 Vivianite and Eosphorite chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Vivianite and Eosphorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Eosphorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Eosphorite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 3.05-3.08 whereas that of Eosphorite is 3.05-3.08.