Hercynite and Cassiterite Physical Properties

Hercynite

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

4.396.86-7.03

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Uneven

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

1.6 Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

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

1.7 Mohs Hardness

7.5-86-7

2 10

1.8 Chemical Composition

Fe2+ Al 2O 4Gemdat.org , Management Team (2012)

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

Hercynite and Cassiterite Chemical Formula

While comparing Hercynite 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 Hercynite and Cassiterite chemical formula.

Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hercynite and Cassiterite Specific Gravity

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