Spinel and Ludlamite Physical Properties
Tenacity
Not Available
Not Available
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
3.1-3.2
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
None, but may exhibit slight parting
Vitreous, pearly on cleavage
Chemical Composition
MgAl2O4
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Ludlamite Chemical Formula
While comparing Spinel 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 Spinel and Ludlamite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Ludlamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.