Piemontite and Vivianite Physical Properties

Piemontite

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

Not Available2.64-2.70

1 7.18

1.5 Fracture

Uneven, Splintery

(e.g. graphite).

1.6 Cleavage

[001] good, [100] distinct

{010} Perfect

1.7 Mohs Hardness

6-6.5Not Available

2 10

1.8 Chemical Composition

Not Available

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

Piemontite and Vivianite Chemical Formula

While comparing Piemontite 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 Piemontite and Vivianite chemical formula.

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

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Piemontite and Vivianite Specific Gravity

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