Ludlamite and Sphalerite Physical Properties
Specific Gravity
3.1-3.2
3.95-4.10
Cleavage
Vitreous, pearly on cleavage
{110} Perfect, {110} Perfect, {110} Perfect
Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ludlamite and Sphalerite Chemical Formula
While comparing Ludlamite and Sphalerite 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 Sphalerite chemical formula.
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ludlamite and Sphalerite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ludlamite and Sphalerite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Sphalerite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 3.95-4.10 whereas that of Sphalerite is 3.95-4.10.