Pumpellyite and Ludlamite Physical Properties

Pumpellyite

Ludlamite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.20-3.30

Perfect

5-6

Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

3.1-3.2

Vitreous, pearly on cleavage

3-4

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

Pumpellyite and Ludlamite Chemical Formula

While comparing Pumpellyite 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 Pumpellyite and Ludlamite chemical formula.

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Pumpellyite and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pumpellyite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pumpellyite Vs Ludlamite during the identification of gemstone. Specific gravity of Pumpellyite is whereas that of Ludlamite is .