BAUXITE ORE

Bauxite, an aluminum ore, is the world's main source of aluminum. It consists mostly of the minerals gibbsite Al(OH)3, boehmite γ-AlO(OH) and diaspora α-AlO(OH), mixed with the two iron oxides goethite and haematite, the clay mineral kaolinite and small amounts of anatase TiO2, Ilmenite, FeTiO3, and FeO TiO2.

Physical Properties of Bauxite
Chemical Classification
Color white, gray, sometimes stained yellow, orange red, pink, brown or yellow by iron or included iron minerals
Streak usually white but iron stain can discolor
Luster dull, earthy
Diaphaneity opaque
Cleavage none
Mohs Hardness 1 to 3
Specific Gravity 2 to 2.5
Diagnostic Properties often exhibits pisolitic structure, color
Chemical Composition variable but always rich in aluminum oxides and aluminum hydroxides Crystal System n/a
Uses primary ore of aluminum, also used as an abrasive

USES OF BAUXITE

Bauxite Used for Aluminum Production
Use of Bauxite as an Abrasive
Use of Bauxite as a Proppant

  SPECIFICATION  OF BAUXITE              
 
METAL GRADE      (trihydrated)
 
Sr_No                                     PARAMETER                               SPECIFICATION

1                                                      A1203                                   49%min to 51%max

2                                                      Sio2                                       3%min to 4%max

3                                                      Cao                                        3%min to 4%mix

4                                                      Fe203                                    4.5%min to 10%max

5                                                      Tio2                                        3%min to 4%max

6                                                       LOI                                         29%min to 30%max

7                                                     Size                                          0 mm TO 100mM

 
CEMENT GRADE (APPROX SPECIFICATION)
 
Sr_No                                      PARAMETER                                       SPECIFICATION

1                                                   A1203                                               48%min to 49%max

2                                                   Sio2                                                   13%min to 15%max

3                                                  Cao                                                    0.50%min to2%max

4                                                  Fe203                                                 4%min to 5%max

5                                                  Mgo                                                    0.10%

6                                                 Tio2                                                      3%min to 4%max

7                                                  LOI                                                       25%min to 27%max

8                                                  Size                                                      0mm TO 40mm