Rossmanite and Vivianite Physical Properties

Rossmanite

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

32.64-2.70

1 7.18

1.5 Fracture

Brittle, Metallic

(e.g. graphite).

1.6 Cleavage

None

{010} Perfect

1.7 Mohs Hardness

Not AvailableNot Available

2 10

1.8 Chemical Composition

◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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

Rossmanite and Vivianite Chemical Formula

While comparing Rossmanite 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 Rossmanite and Vivianite chemical formula.

Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Compare Gems Found in America

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Rossmanite Vs Serandite

Rossmanite Vs Serpentine

Rossmanite and Vivianite Specific Gravity

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