Grandidierite and Cassiterite Physical Properties

Grandidierite

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

2.85-3.006.86-7.03

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect

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

1.7 Mohs Hardness

7.56-7

2 10

1.8 Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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

Grandidierite and Cassiterite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Cassiterite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Grandidierite and Cassiterite Specific Gravity

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