Vivianite and Cassiterite Physical Properties

Vivianite

Cassiterite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.64-2.706.86-7.03

1 7.18

1.5 Fracture

(e.g. graphite).

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular

1.6 Cleavage

{010} Perfect

{100} imperfect, {110} indistinct; partings on {111} or {011}

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

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

SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Vivianite and Cassiterite Chemical Formula

While comparing Vivianite and Cassiterite 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 Cassiterite chemical formula.

Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Vivianite and Cassiterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.