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Ludlamite
Ludlamite

Selenite
Selenite



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Ludlamite
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Selenite

Ludlamite and Selenite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
3.1-3.2
-
Vitreous, pearly on cleavage
3-4
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
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-
-
-9999
-
Perfect
2
CaSO4·2H2O

Ludlamite and Selenite Chemical Formula

While comparing Ludlamite and Selenite 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 Selenite chemical formula.

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Ludlamite and Selenite Specific Gravity

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