Geology and Mineral Resources of Sikkim

Source: Geological Suvery of India (GSI)

In spite of low accessibility, thick vegetal and soil/ debris/ moraine cover, the state of Sikkim is represented by a number of base metal occurrences. Most of the occurrences are in Daling Group of rocks in parts of West, South and East districts of Sikkim. Base metal occurrences at Bhotang, Pachekhani and Dikchu have been explored in details. The Bhotang and Pachekhani lodes which are mined presently are possibly the only working mines in Himalayas. Among non metallic minerals coal, graphite, dolomite, limestone, marble, wollastonite, talc, sillimanite and asbestos etc. also occur.

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GSI Miscellaneous Publication No. 30, Part XIX - Sikkim (Login Required)