Mapping of Gem Mineral Deposits Using GIS Technique in Salem District, Tamil Nadu, South India

Southern Indian states are endowed with rich gem mineral wealth. High potential region for the occurrence of gem deposits appear to be the Precambrian region in the Eastern Ghats. Gemstones which are of mineral origin are found largely in metamorphic terrain. Salem district which is primarily enclosed by high grade metamorphic rocks is the study area. This study addresses field investigation and the potential capabilities of Geographical Information System (GIS) to point out the potential zones of gem deposit.