The Z* Team

The Z* Team

Team-About

team The Z* technical team provides specialist services to the mining and investment communities. Z* prides itself in having excellent technical knowledge and in maintaining high standards and integrity in all our projects. In the first five years of operating from our Cape Town office Z* has developed a reputation in the industry for completing projects on time and within budget. We have successfully developed robust, long term partnerships with a number of large mining houses as well as smaller companies. Our policy of frequent and open dialogue during all projects has strengthened our working relationships and enabled clients to develop their own levels of skills and knowledge. Z* present a one week course on mineral resource management at Stellenbosch University and the University of Cape Town. The course is intended as an introduction to the geostatistical estimation and aims to give students a fundamental understanding of the principles of estimation.

Cuan Lohrentz

Cuan Lohrentz

Senior Mineral Resource Analyst

Cuan Lohrentz holds a BSc in Geology and Physics and a BSc Hons in Geology from the Nelson Mandela Metropolitan University. After completing his formal education he joined Bloy Resource Evaluation as an evaluation geologist. He received exposure to many African gold deposits as well as base metal deposits in Southern Africa. Cuan has successfully completed the Citation Program in Applied Geostatistics run  by the University of Alberta, Canada. He is experienced in geological modelling, mineral resource estimation and classification and has extensive DatamineTM skills. Cuan is also competent in a number of other software packages, including Isatis, Leapfrog and WinGsLib. Download the full CV

Johan van Zyl

Johan van Zyl

Senior Mineral Resource Analyst

Johan van Zyl is a Senior Mineral Resource Analyst who has been with Z* since the inception of the company in 2008. Johan has a BSc degree (Physical and Mathematical Analysis) from the University of Stellenbosch and he completed a BSc Honours degree in Geographical Information Systems (GIS) at the University of Pretoria in 2006. Subsequent to joining Z* Johan completed, with distinction, the CSFG geostatistical course at the École Nationale Supérieure des Mines de Paris, France. Prior to joining Z* Johan worked for De Beers on the placer diamond deposits at Namdeb and Namaqualand Mineswhere his responsibilities included preparing official government plans and he specialised in the spatial monitoring and reconciliation of rehabilitation programmes. During a period with De Beers Group Services Johan's focus was on geostatistics and he has developed specialist skills in GIS, modelling and data validation. Download the full CV