Hendrik G. van Oss
Hendrik G. van Oss
Email Address hvanoss.cement@gmail.com
Company U.S. Geological Survey (Emeritus)
Position Economic Geologist (Retired)
Phone 703-715-8381
Email Address hvanoss.cement@gmail.com
Company U.S. Geological Survey (Emeritus)
Position Economic Geologist (Retired)
Phone 703-715-8381