Hennie has further experience in economic geology, mineral valuation, exploration methodology, and mining geology. His expertise includes: - metamorphosed and deformed base-metal sulphide deposits of the Namaqualand Metamorphic Complex; exploration for base-metals and industrial minerals, Au and W in the Greenstone Belts, magmatic Ni-Cu sulphide and PGE mineralization, mining of and exploration for conglomerate hosted Au – U ores of the Witwatersrand; - geochemical exploration for Au, base metals, and diamonds; - lithogeochemical fingerprinting tools for the classification of lava layers, gold-bearing sedimentary units, and hydrothermally altered rocks; - feasibility studies, competent person reviews and exploration guidance of Au, Ni, Cu, Co, REE, PGE’s, Cr, U, porphyry copper, limestone, various pegmatite minerals, phosphate and industrial mineral deposits, diamonds, and other gemstones. As professor (2000 – 2008) he taught Economic Geology and Mineral Evaluation and supervised post graduate studies on deposits of diamonds, coal, PGE’s, Ni sulphide ores, Cu-Zn massive sulphides, brick clay, feldspar and syenite, and topics such as; the resource risk related to small scale mining, and exploration methodology. He has presented lectures and short courses in South Africa and internationally and published in both the scientific and technical press. Hennie is a registered professional geologist and has acted in an advisory capacity to governments and private companies.
