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Spinel
Spinel

Ludlamite
Ludlamite



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Spinel
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Ludlamite

Spinel and Ludlamite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.64-3.66
Conchoidal, Uneven
None, but may exhibit slight parting
8
MgAl2O4
 
-
-
-
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

Spinel and Ludlamite Chemical Formula

While comparing Spinel 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 Spinel and Ludlamite chemical formula.

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Spinel and Ludlamite Specific Gravity

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