Cassiterite and Umbalite Physical Properties

Cassiterite

Umbalite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.033.62-4.33

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

6-77-7.5

2 10

1.8 Chemical Composition

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

Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

Cassiterite and Umbalite Chemical Formula

While comparing Cassiterite and Umbalite 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 Cassiterite and Umbalite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

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Cassiterite and Umbalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Umbalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Umbalite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.62-4.33 whereas that of Umbalite is 3.62-4.33.