September 24 2014
Topaz Facts and FormationTopaz is a silicate mineral most often found in igneous rocks of felsic composition.It is also found in some hydrothermal veins and the hydrothermally altered rocks that surround them.It is a common mineral of pegmatite and...
September 24 2014
HEMATITE USES AND FACTSHematite is used commonly as iron oreit is used as ornamental jewelleryit also has uses in paint ore and pigmentsThe colour of most red and brown rock, such as sandstone, is caused by small amounts of Hematite  
September 24 2014
TYPICAL MASS BALANCE FOR THE USE OF SLUICE-BOXESFeed: alluvial gold ore: 100m3 or 180t (one day) = 100%Rougher sluice-box pre-concentrate: 180kg = 0.1%Cleaner sluice-box concentrate: 18kg = 0.01%Only the cleaner concentrate or 0.01% of the material...
September 24 2014
FLOW RATESFrom visual observances, three modes of particle transport due to flow rates were identified.At low flow rates, particles build up against the riffle until it becomes full, and then roll/slide into the next riffle spacing.At moderate flow...
September 24 2014
Would allow a lower flow rate , shallower slope, and the effect of differences in specific gravity would be more pronounced due to the lower influence of particle sizes
September 24 2014
The Nomad (magic) matting was far more superior to the Brazilian matting. The former has more space to accommodate material and is easier to clean up.The Brazilian type needs to be cleaned more often and is only effective for the recovery fine gold...
September 24 2014
MAGNESITE USES AND FACTSSimilar to the production of lime, magnesite can be burned in the presence of charcoal to produce MgO, which in the form of a mineral is known as periclase. Large quantities of magnesite are burnt to make magnesium oxide: an...
September 24 2014
MOLYBDENUM USES AND FACTSvaluable alloying agent, as it contributes to the hardness and toughness of quenched and tempered steels.used in certain nickel-based alloys which are heat-resistant and corrosion-resistant to chemical solutions.electrical...
September 24 2014
NICKEL USES AND FACTSAbout 65% of the nickel which is produced is used to manufacture stainless steels.Another 20% is used in other steel and non-ferrous alloys - often for highly specialized industrial, aerospace and military applications.About 9%...
September 24 2014
KAOLIN USES AND FACTSKaolin is used in ceramics; it is generally the main component in porcelainas a light diffusing material in white incandescent light bulbsin cosmetics & for facial masks or soapfor its semi-reinforcing properties in rubberin...
August 28 2014
Only time will tell if he will be a benign caretaker, or a monster that destroys life and with it himself. But there are clues, and here I will examine what Homni is, and what he means for our species, the planet and the rest of life on Earth. Crowd...
August 28 2014
How would your boss react if he had to sign off for an expensive stuffed fish you’d bought on a whim on your holiday? Most of us would probably answer “not very thrilled”. But Frank Stephenson’s boss is not your average boss; his workplace is not...