Biotite and Cassiterite Physical Properties

Biotite

Cassiterite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.7-3.36.86-7.03

1 7.18

1.5 Fracture

Uneven, Even, Yellow, White

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

1.6 Cleavage

Perfect on the {001}

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

1.7 Mohs Hardness

2.5-3.06-7

2 10

1.8 Chemical Composition

K(Mg,Fe++)3[AlSi3O10(OH,F)2

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

Biotite and Cassiterite Chemical Formula

While comparing Biotite 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 Biotite and Cassiterite chemical formula.

Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Yellow Gemstones

Biotite Vs Gyrolite

Biotite Vs Hanksite

Biotite Vs Hauyne

Biotite and Cassiterite Specific Gravity

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