Carnallite and Vivianite Physical Properties

Carnallite

Vivianite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.62.64-2.70

1 7.18

1.5 Fracture

Violet, Conchoidal, Brittle, Conchoidal, Brittle

(e.g. graphite).

1.6 Cleavage

None

{010} Perfect

1.7 Mohs Hardness

2.5Not Available

2 10

1.8 Chemical Composition

KMgCl3•6(H2O)

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

Carnallite and Vivianite Chemical Formula

While comparing Carnallite 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 Carnallite and Vivianite chemical formula.

Chemical formula of Carnallite- KMgCl3•6(H2O)
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Carnallite and Vivianite Specific Gravity

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