Uvite and Gibbsite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.97-3.14
  
2.35
  
Fracture
Uneven, Conchoidal, Brittle
  
Fibrous, Difficult, Fibrous
  
Cleavage
{1011} Indistinct
  
{001} Perfect
  
Mohs Hardness
Not Available
  
2.5-3
  
Chemical Composition
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Al(OH)3
  
Uvite and Gibbsite Chemical Formula
While comparing Uvite and Gibbsite 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 Uvite and Gibbsite chemical formula.
- Chemical formula of Uvite- Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Gibbsite- Al(OH)3
Uvite and Gibbsite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Uvite and Gibbsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Uvite and Gibbsite Optical Properties during the identification of gemstone. Specific gravity of Uvite is 2.35 whereas that of Gibbsite is 2.35.