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Wulfenite
Wulfenite

Ludlamite
Ludlamite



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Wulfenite
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Ludlamite

Wulfenite and Ludlamite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

6.50-7.003.1-3.2
1 7.18
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Fracture

Irregular, Conchoidal
-

Cleavage

On {011}, distinct; on {001}, {013}, indistinct
Vitreous, pearly on cleavage

Mohs Hardness

33-4
2 10
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Chemical Composition

PbMoO 4Walter Schumann , Gemstones of the world (2001)
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Wulfenite and Ludlamite Chemical Formula

While comparing Wulfenite 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 Wulfenite and Ludlamite chemical formula.

  • Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
  • Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Wulfenite and Ludlamite Specific Gravity

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