Elbaite and Cassiterite Physical Properties

Elbaite

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

2.90-3.106.86-7.03

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

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

1.6 Cleavage

Poor/indistinct on {1120} and {1011}

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

1.7 Mohs Hardness

76-7

2 10

1.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

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

Elbaite and Cassiterite Chemical Formula

While comparing Elbaite 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 Elbaite and Cassiterite chemical formula.

Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Elbaite and Cassiterite Specific Gravity

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