Ludlamite and Kyanite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.1-3.2
3.53-3.65
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Splintery, Brittle, Metallic
Cleavage
Vitreous, pearly on cleavage
[100] perfect [010] imperfect with 79° angle between
Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
Ludlamite and Kyanite Chemical Formula
While comparing Ludlamite and Kyanite 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 Kyanite 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 Kyanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ludlamite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.