Londonite and Ammolite Physical Properties

Londonite

Ammolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.342.75-2.80

1 7.18

1.5 Fracture

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Uneven, Granular

1.6 Cleavage

None

no true cleavage

1.7 Mohs Hardness

Not Available4

2 10

1.8 Chemical Composition

(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)

Not Available

Londonite and Ammolite Chemical Formula

While comparing Londonite and Ammolite 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 Ammolite chemical formula.

Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)

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Londonite and Ammolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Londonite and Ammolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Londonite and Ammolite Optical Properties during the identification of gemstone. Specific gravity of Londonite is 2.75-2.80 whereas that of Ammolite is 2.75-2.80.