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