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Ludlamite
Ludlamite

Dallasite
Dallasite



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Ludlamite
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Dallasite

Ludlamite and Dallasite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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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
 
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2.58-2.91
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6.5-7
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Ludlamite and Dallasite Chemical Formula

While comparing Ludlamite and Dallasite 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 Dallasite chemical formula.

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Ludlamite and Dallasite Specific Gravity

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