Directorate of Geology
Geology Department

Ore Dressing & Mineral Processing

The Ore Dressing Laboratory undertakes processing of ores, minerals, Diamond Indicator Mineral (DIM) samples
(gravel, loam and bulk concentrate) and beach sand samples. The processes involved are laid below.

Processing of ores and mineral samples :

Various beneficiation techniques such as crushing, grinding, classifying, gravity separation, flotation, magnetic separation etc. are adopted.

Processing of bulk, loam and gravel samples for DIM :

These samples undergo processes like cleaning, gravity separation, heavy liquid separation, magnetic separation etc.  Equipment like scrubbers, mineral jig, Pleitz jig, half deck wifely table, high force magnetic separator, hand magnet and other instruments like platform balance etc.

Processing of beach sand samples :

The process of separating heavy minerals from beach sand involves steps of acid treatment, size separation, heavy liquid separation and magnetic separation. The equipment involved are Rotap Type Sieve Shaker, Heavy Liquid Separation Unit, High Force Magnetic Separator, Hand Magnet or Isodynamic Separator, Digital Balance etc.