Jacobsite and Vivianite Physical Properties

Jacobsite

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

4.76-5.032.64-2.70

1 7.18

1.5 Fracture

Conchoidal, Brittle

(e.g. graphite).

1.6 Cleavage

None

{010} Perfect

1.7 Mohs Hardness

5.5-6.5Not Available

2 10

1.8 Chemical Composition

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

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

Jacobsite and Vivianite Chemical Formula

While comparing Jacobsite 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 Jacobsite and Vivianite chemical formula.

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

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Jacobsite and Vivianite Specific Gravity

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