Friedelite and Londonite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.06-3.19
3.34
Fracture
UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
{010} Perfect
None
Mohs Hardness
4-5
Not Available
Chemical Composition
Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Friedelite and Londonite Chemical Formula
While comparing Friedelite 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 Friedelite and Londonite chemical formula.
- Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
- Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Friedelite and Londonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Friedelite and Londonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Friedelite and Londonite Optical Properties during the identification of gemstone. Specific gravity of Friedelite is 3.34 whereas that of Londonite is 3.34.