Sheen Obsidian and Vivianite Physical Properties

Sheen Obsidian

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

2.33-2.502.64-2.70

1 7.18

1.5 Fracture

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

(e.g. graphite).

1.6 Cleavage

Not Available

{010} Perfect

1.7 Mohs Hardness

5-5.5Not Available

2 10

1.8 Chemical Composition

Not Available

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

Sheen Obsidian and Vivianite Chemical Formula

While comparing Sheen Obsidian 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 Sheen Obsidian and Vivianite chemical formula.

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

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Sheen Obsidian and Vivianite Specific Gravity

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