Londonite and Fluorite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
slightly water soluble and in hot hydrochloric acid
Durability
Not Available
Not Available
Specific Gravity
3.34
3.00-3.25
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
None
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
Not Available
4
Chemical Composition
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
CaF2
Londonite and Fluorite Chemical Formula
While comparing Londonite and Fluorite 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 Londonite and Fluorite chemical formula.
- Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Fluorite- CaF2
Londonite and Fluorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Londonite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Londonite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Londonite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.