Ludlamite and Verdite Physical Properties

Ludlamite

Verdite

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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

3.1-3.22.80-3.0

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Vitreous, pearly on cleavage

{110} Good

1.7 Mohs Hardness

3-43

2 10

1.8 Chemical Composition

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

NaFeS2•2(H2O)

Ludlamite and Verdite Chemical Formula

While comparing Ludlamite and Verdite 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 Ludlamite and Verdite chemical formula.

Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Verdite- NaFeS2•2(H2O)

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Ludlamite and Verdite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Verdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Verdite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 2.80-3.0 whereas that of Verdite is 2.80-3.0.