Londonite and Emerald Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
3.34
2.67-2.78
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
None
Imperfect on the [0001]
Mohs Hardness
Not Available
7.5-8
Chemical Composition
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Be3Al2SiO6
Londonite and Emerald Chemical Formula
While comparing Londonite and Emerald 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 Emerald 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 Emerald- Be3Al2SiO6
Londonite and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Londonite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Londonite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Londonite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.