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One mineral of which Burma has felt the lack most acutely is good Coal. Coal of a kind is plentiful and ubiquitous enough, but it is always a Tertiary lignite, with low fixed carbon and high ash and water percentages. The best known seams occur in the Northern Shan States, in
Fig. 30. Gold washing in the Chindwin River.
the foothills of the Arakan Yoma in the Minbu and Henzada districts, and on the Kale river in the Upper Chindwin district. In the Shan States the Lashio and Namma fields are the most important, the latter possessing very large reserves of a lignite of less inferior quality.
Rich Copper ore has been discovered in the silver-lead