Andesine and Londonite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65-2.69
3.34
Fracture
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Perfect on {001}, good on {010}
None
Mohs Hardness
6-6.5
Not Available
Chemical Composition
(Na,Ca)Al1-2Si3-2O8
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Andesine and Londonite Chemical Formula
While comparing Andesine 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 Andesine and Londonite chemical formula.
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Andesine and Londonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andesine and Londonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andesine and Londonite Optical Properties during the identification of gemstone. Specific gravity of Andesine is 3.34 whereas that of Londonite is 3.34.