Gibbsite and Ludlamite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.35
3.1-3.2
Fracture
Fibrous, Difficult, Fibrous
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
{001} Perfect
Vitreous, pearly on cleavage
Chemical Composition
Al(OH)3
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Gibbsite and Ludlamite Chemical Formula
While comparing Gibbsite 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 Gibbsite and Ludlamite chemical formula.
- Chemical formula of Gibbsite- Al(OH)3
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Gibbsite and Ludlamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gibbsite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.