News
The latest Z* news items are shown below.
Johan leaves Z* to explore new opportunities
Johan van Zyl worked closely with Z* directors on west coast diamond operations in Oranjemund and Kleinzee before joining Z* when it was formed in June 2008. In addition to extensive geostats skills, Johan also looked after many of our our clients GIS needs. Johan...
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Z* celebrates 10 Years
On the 1st of July 2018 Z* celebrated their 10th birthday. In the world of consulting a decade is actually a long time and we are very proud of this achievement. Coming together to start Z* was a little daunting as we were surrendering the security of a large...
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Angolan geologists visit Cape Town
Angolan geologists have commenced the second practical phase of specialist training in sampling optimisation and mineral resource estimation, this time at the Z* Cape Town office. This follows an initial training phase completed on site in Angola. Despite...
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Another Northern Cape Project
Following work undertaken for Kumba on their Sishen mine Z* was asked to update the Kolomela Mineral Resource. The evaluation of Kolomela, situated in the Northern Cape near Postmasburg, involved Johan and David in detailed and complex...
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New life for an old base metal venture
Z* has entered into an agreement with Orion Minerals to assist with the evaluation of the Prieska Copper Mine (PCM) in the Northern Cape. The PCM deposit was extensively mined between the seventies and nineties and results from recent drilling...
read more11 IKC Conference
The 11th International Kimberlite Conference was held in Gaberone and coincided with Botswana celebrating 50 years of diamonds. David represented Z* at the conference and co-authored a paper on micro diamonds with geologists from De Beers.
read moreZ* visit Angola
In August Sean and Cuan travelled to the Catoca Mine in North East Angola to present an introductory two week course on the principals of mineral resource management, geology modelling, sampling, mineral resource estimation and classification. In addition to the time...
read moreSAMREC/SAMVAL Companion Volume Conference 2016
Z* (Sean and Andy) co-authored a paper with De Beers for the SAMREC Companion Volume Conference that was held in Johannesburg on the 17th and 18th of May. The conference was well supported by the mining fraternity with representation from gold, diamonds, gemstones,...
read moreDatamineTM Africa Conference
During May Cuan attended the DatamineTM Africa Conference which was held over three days at Misty Hills outside Johannesburg. The presentations included topics such as dealing with outlier, uniform conditioning, stratified orebody modelling and sampling. The focus of...
read moreSEG Estimation Course
Just before the start of the 2016 Mining Indaba in Cape Town Z* presented a one day introductory course on mineral resource estimation. Sean presented the workshop which was held under the auspices of the American Society of Economic Geologists and UCT. The event took...
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