Pyrite and Ludlamite Physical Properties
Solubility
insoluble in water
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Specific Gravity
5.00-5.20
3.1-3.2
Fracture
Uneven, Conchoidal, ConchoidalWalter Schumann
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Cleavage
Indistinct on {001}; partings on {011} and {111}
Vitreous, pearly on cleavage
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pyrite and Ludlamite Chemical Formula
While comparing Pyrite 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 Pyrite and Ludlamite chemical formula.
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pyrite and Ludlamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.