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Londonite
Londonite

Amethyst
Amethyst



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Londonite
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Amethyst

Londonite and Amethyst Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
insoluble in common solvents
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.342.65
Amber
1 7.18
1.5 Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
None
Indiscernible
1.7 Mohs Hardness
Not Available7
Amber
2 10
1.8 Chemical Composition
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
SiO2

Londonite and Amethyst Chemical Formula

While comparing Londonite and Amethyst 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 Amethyst 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 Amethyst- SiO2

Londonite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Londonite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Londonite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Londonite is 2.65 whereas that of Amethyst is 2.65.