Pargasite and Ludlamite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.04-3.26
3.1-3.2
Fracture
Splintery, Brittle, Uneven
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
{110} perfect
Vitreous, pearly on cleavage
Chemical Composition
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pargasite and Ludlamite Chemical Formula
While comparing Pargasite 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 Pargasite and Ludlamite chemical formula.
- Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pargasite and Ludlamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pargasite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.