Sodalite and Londonite Physical Properties

Sodalite

Londonite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.15-2.403.34

1 7.18

1.5 Fracture

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

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

1.6 Cleavage

Poor on {110}

None

1.7 Mohs Hardness

5-6Not Available

2 10

1.8 Chemical Composition

Na₈Al₆Si₆O₂₄Cl₂

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

Sodalite and Londonite Chemical Formula

While comparing Sodalite 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 Sodalite and Londonite chemical formula.

Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂
Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)

Compare Gems for Sagittarius

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Sodalite Vs Iolite

Sodalite and Londonite Specific Gravity

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