Siderite and Cassiterite Physical Properties

Siderite

Cassiterite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

3.83-3.896.86-7.03

1 7.18

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Fracture

Uneven, Conchoidal

Subconchoidal, Uneven, Conchoidal, Irregular

Cleavage

Perfect on {01 1 1}

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

Mohs Hardness

3.5-4.56-7

2 10

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Chemical Composition

Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Siderite and Cassiterite Chemical Formula

While comparing Siderite 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 Siderite and Cassiterite chemical formula.

Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Siderite and Cassiterite Specific Gravity

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