Vivianite and Pezzottaite Physical Properties

Vivianite

Pezzottaite

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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

2.64-2.702.90-3.14

1 7.18

1.5 Fracture

(e.g. graphite).

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{010} Perfect

Imperfect; basal

1.7 Mohs Hardness

Not Available7.5-8

2 10

1.8 Chemical Composition

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

(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

Vivianite and Pezzottaite Chemical Formula

While comparing Vivianite and Pezzottaite 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 Pezzottaite chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

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Vivianite and Pezzottaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.