Cassiterite and Forsterite Physical Properties

Cassiterite

Forsterite

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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

6.86-7.033.23-3.26

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

Perfect on {010} imperfect on {100}

1.7 Mohs Hardness

6-76.5-7

2 10

1.8 Chemical Composition

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

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Cassiterite and Forsterite Chemical Formula

While comparing Cassiterite and Forsterite 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 Forsterite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Cassiterite and Forsterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.