Friedelite and Vivianite Physical Properties

Friedelite

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

3.06-3.192.64-2.70

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven

(e.g. graphite).

1.6 Cleavage

{010} Perfect

1.7 Mohs Hardness

4-5Not Available

2 10

1.8 Chemical Composition

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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

Friedelite and Vivianite Chemical Formula

While comparing Friedelite 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 Friedelite and Vivianite chemical formula.

Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Compare Red Gemstones

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Friedelite Vs Hydrogrossular

Friedelite Vs Hibonite

Friedelite and Vivianite Specific Gravity

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