Dallasite and Londonite Physical Properties

Dallasite

Londonite

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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

2.58-2.913.34

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

None

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

Not Available

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

Dallasite and Londonite Chemical Formula

While comparing Dallasite 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 Dallasite and Londonite 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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Dallasite and Londonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dallasite and Londonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dallasite and Londonite Optical Properties during the identification of gemstone. Specific gravity of Dallasite is 3.34 whereas that of Londonite is 3.34.