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Demantoid
Demantoid

Ludlamite
Ludlamite



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Demantoid
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Ludlamite

Demantoid and Ludlamite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.77-3.95
-
Imperfect
6.5
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
 
-
-
-
3.1-3.2
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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

Demantoid and Ludlamite Chemical Formula

While comparing Demantoid 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 Demantoid and Ludlamite chemical formula.

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Demantoid and Ludlamite Specific Gravity

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