Vesuvianite and Ludlamite Physical Properties

Vesuvianite

Ludlamite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.32-3.433.1-3.2

1 7.18

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Fracture

Conchoidal

Cleavage

Poor on {110} and {100} very poor on {001}

Vitreous, pearly on cleavage

Mohs Hardness

6-73-4

2 10

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Chemical Composition

Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4

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

Vesuvianite and Ludlamite Chemical Formula

While comparing Vesuvianite 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 Vesuvianite and Ludlamite chemical formula.

Chemical formula of Vesuvianite- Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4
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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Vesuvianite and Ludlamite Specific Gravity

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