About Us

J.M.W. Geo-Consulting was set up by Dr. J.M. Warnsloh in January 2009 to deliver services in mineral exploration and petrography. Our core business is consultancy in the fields of economic geology, natural stone analysis, and environmental examination. Over the years, the focus of our activities shifted from general services during exploration projects to detailed petrographical and geochemical analyses as base for mineral resource estimations following Ni 43-101 and JORC. Around this core, we serve clients with microscopical, geochemical and x-ray analyses of geo materials like natural stone, concrete and metallurgical products.

We offer our services for all phases of your project:

  • evaluation or (pre)feasibility studies
  • sampling during the mapping or exploration campaigns
  • analysis of samples or data with our in-house equipment

Key staff member

Dr. J.M. Warnsloh is a graduate mineralogist with 20+ years experience in petrology, economic geology and applied geochemistry. He holds a MSc in economic geology and geochemistry (Department of Mineral Resources, Clausthal University of Technology) and a doctorate degree in applied geochemistry (Institute of Mineralogy and Economic Geology, RWTH Aachen University).

He accomplished projects in economic geology (focus on niobium and tantalum mineralization), mineralogy for mining and process metallurgy companies, petrographic examinations of natural stones, as well as mineral exploration campaigns. He has demonstrated skills in drilling supervision, core logging and quality control and gained a high expertise in the field of niobium mineralization and carbonatite-hosted commodities (e.g. Niobium, REE), salt and quartz.

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