Narsarsukite and Vivianite Physical Properties

Narsarsukite

Vivianite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.72-2.832.64-2.70

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

(e.g. graphite).

1.6 Cleavage

Good on {100} and {110}

{010} Perfect

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

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

Narsarsukite and Vivianite Chemical Formula

While comparing Narsarsukite 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 Narsarsukite and Vivianite chemical formula.

Chemical formula of Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Narsarsukite and Vivianite Specific Gravity

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