Study of spectral properties of coal and other coal measure rocks in VNIR band: A case study of Jharia coal mines, India

Nafisa Begum, Indian Institute of Technology Kharagpur, Kharagpur, India, Prof. Debashish Chakravarty, Indian Institute of Technology Kharagpur, Mining Engineering Department, Kharagpur, India and Prof. Bhabani Sankar Das, Indian Institute of Technology Kharagpur, Agricultural and Food Engineering Department, Kharagpur, India