Ludlamite and Erythrite Physical Properties
Tenacity
Not Available
Sectile
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.1-3.2
3.06
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Cleavage
Vitreous, pearly on cleavage
Perfect on {010}; poor on {100} and { 1 02}.
Mohs Hardness
3-4
Not Available
Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Co3(AsO4)2•8(H2O)
Ludlamite and Erythrite Chemical Formula
While comparing Ludlamite and Erythrite 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 Erythrite 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 Erythrite- Co3(AsO4)2•8(H2O)
Ludlamite and Erythrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ludlamite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 3.06 whereas that of Erythrite is 3.06.