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Cassiterite
Cassiterite

Opal
Opal



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Cassiterite
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Opal

Cassiterite and Opal Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
insoluble
-
6.86-7.03
Subconchoidal, Uneven, Conchoidal, Irregular
{100} imperfect, {110} indistinct; partings on {111} or {011}
6-7
SnO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
BrittleWalter Schumann
hot salt water
-
1.98-2.25
Conchoidal
None
5-6.5
SiO2 · nH2O

Cassiterite and Opal Chemical Formula

While comparing Cassiterite and Opal 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 Opal chemical formula.

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Cassiterite and Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite Vs Opal during the identification of gemstone. Specific gravity of Cassiterite is whereas that of Opal is .