Vivianite and Papagoite Physical Properties

Vivianite

Papagoite

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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

2.64-2.703.25

1 7.18

1.5 Fracture

(e.g. graphite).

Brittle, Metallic

1.6 Cleavage

{010} Perfect

Imperfect in one direction

1.7 Mohs Hardness

Not Available5-5.5

2 10

1.8 Chemical Composition

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

CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Vivianite and Papagoite Chemical Formula

While comparing Vivianite and Papagoite 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 Papagoite chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Vivianite and Papagoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Papagoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Papagoite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 3.25 whereas that of Papagoite is 3.25.