High Grade Trihydrate Washed Bauxite

Product Ref: 7303

Description: Metallurgical Gradegibsitic Bauxite

(90% Trihydrate and 10% Monohydrate Bauxite)

Origin: Guinea Conakry

Delivery: Bulk

Incoterms: FOB / CIF

Payment By: Letter of Credit

Others: Low Temperature Ignition Rate

Presentations: Product Is Washed And Can Be Sorted By Lump Size, If Desired

Packing:In Bulk. Offered Fob, delivered to a cape-sized vessel (100,000 Mt–300,000mt)

Technical Facts: Gibbsite is one of the three component minerals of the economically important aluminum ore Bauxite. Gibbsite was first discovered in 1820 by Chester Dewey (1784-1867) of Williams College, Massachusetts. It was first thought to be Wavellite, but a year later it was determined to be a separate mineral species and was subsequently named Hydrargillite. It was then renamed Gibbsite in 1822 by John Torrey (1796-1873) in honor of George Gibbs (1776-1833) of New Haven, a noted mineralogist whose important collection was acquired by Yale University. – See more at: http://www.minerals.net/mineral/gibbsite.


Guaranteed value 

Typical value

Tota lAl2O3 Min 49%


Available Al2O3 Min 45%


Total SiO2 Max 3.5%


Reactive SiO2 Max 3%


Moisture content Max 11%


Fe2O3 16-20%


CaO Max 0.01%


Lump size <100mm


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We look forward to the opportunity of proving ourselves and are more than happy to undertake trial orders and small quantities for new clients who may wish to move cautiously