Vivianite and Prase Opal Physical Properties

Vivianite

Prase Opal

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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

2.64-2.701.98-2.25

1 7.18

1.5 Fracture

(e.g. graphite).

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{010} Perfect

Not Available

1.7 Mohs Hardness

Not Available5-6.5

2 10

1.8 Chemical Composition

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

SiO 2 + H 2OUlrich Henn and Claudio C.

Vivianite and Prase Opal Chemical Formula

While comparing Vivianite and Prase Opal 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 Prase Opal chemical formula.

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

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Vivianite and Prase Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Prase Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Prase Opal Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 1.98-2.25 whereas that of Prase Opal is 1.98-2.25.