Cassiterite and Petalite Physical Properties

Cassiterite

Petalite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.032.40

1 7.18

1.5 Fracture

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

Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

1.6 Cleavage

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

Perfect on {001}, poor on {201} with 38.5° angle between the two

1.7 Mohs Hardness

6-76-6.5

2 10

1.8 Chemical Composition

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

LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cassiterite and Petalite Chemical Formula

While comparing Cassiterite and Petalite 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 Petalite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Red Gemstones

Cassiterite Vs Cinnabar

Cassiterite Vs Chrome Tourmaline

Cassiterite Vs Chrome-Chalcedony

Cassiterite and Petalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cassiterite and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Petalite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 2.40 whereas that of Petalite is 2.40.