Cassiterite and Londonite Physical Properties
Tenacity
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.86-7.03
3.34
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
None
Mohs Hardness
6-7
Not Available
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Cassiterite and Londonite Chemical Formula
While comparing Cassiterite and Londonite 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 Londonite chemical formula.
- Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Cassiterite and Londonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cassiterite and Londonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cassiterite and Londonite Optical Properties during the identification of gemstone. Specific gravity of Cassiterite is 3.34 whereas that of Londonite is 3.34.