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

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