Chrysoprase and Vivianite Physical Properties

Chrysoprase

Vivianite

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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

2.58-2.642.64-2.70

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

(e.g. graphite).

1.6 Cleavage

None

{010} Perfect

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

SiO₂ (with a high level of nickel impurities )

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

Chrysoprase and Vivianite Chemical Formula

While comparing Chrysoprase 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 Chrysoprase and Vivianite chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Chrysoprase and Vivianite Specific Gravity

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