Sodalite and Ludlamite Physical Properties

Sodalite

Ludlamite

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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

2.15-2.403.1-3.2

1 7.18

1.5 Fracture

Conchoidal, Uneven, UnevenArthur Thomas, Brittle

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

Poor on {110}

Vitreous, pearly on cleavage

1.7 Mohs Hardness

5-63-4

2 10

1.8 Chemical Composition

Na₈Al₆Si₆O₂₄Cl₂

(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sodalite and Ludlamite Chemical Formula

While comparing Sodalite and Ludlamite 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 Ludlamite chemical formula.

Chemical formula of Sodalite- Na₈Al₆Si₆O₂₄Cl₂
Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sodalite and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sodalite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.