Vivianite and Jacobsite Physical Properties

Vivianite

Jacobsite

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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

2.64-2.704.76-5.03

1 7.18

1.5 Fracture

(e.g. graphite).

Conchoidal, Brittle

1.6 Cleavage

{010} Perfect

None

1.7 Mohs Hardness

Not Available5.5-6.5

2 10

1.8 Chemical Composition

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

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Vivianite and Jacobsite Chemical Formula

While comparing Vivianite and Jacobsite 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 Jacobsite chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

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Vivianite and Jacobsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Jacobsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Jacobsite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 4.76-5.03 whereas that of Jacobsite is 4.76-5.03.