1. Department of Mining Engineering, West Virginia University, Morgantown, West Virginia, USA
2. Department of Mining Engineering, Higher Education Complex of Zarand, Shahid Bahonar University of Kerman, Kerman, Iran
3. Mineral Industries Research Center, Shahid Bahonar University of Kerman, Kerman, Iran
4. School of Chemical and Minerals Engineering, North-West University, Potchefstroom, South Africa
5. Department of Mining Engineering, Islamic Azad University, Sirjan, Iran
6. Maelgwyn Mineral Services Ltd, Cardiff, UK
7. Department of Geoscience and Petroleum, Faculty of Engineering, Norwegian University of Science and Technology, Trondheim, Norway