Ludlamite and Feldspar Physical Properties
Tenacity
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Solubility
Not Available
Not Available
Durability
Not Available
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Specific Gravity
3.1-3.2
2.56-2.75
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
Cleavage
Vitreous, pearly on cleavage
two or three
Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
Ludlamite and Feldspar Chemical Formula
While comparing Ludlamite and Feldspar 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 Feldspar chemical formula.
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Ludlamite and Feldspar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ludlamite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.