Lanka has been a well-known natural vein graphite supplier to the world since 1820. This reputation is mainly due to its extremely high purity, the purity being above 99% carbon as in-situ status and no other country in ...

The vein type graphite deposits which are rich in carbon found in Sri Lanka occur in metamorphic rocks as narrow steeply dipping veins. In Sri Lanka, generally these graphite deposits are explored by diamond core drilling ...

Sri Lanka is the only country in the world known to extract and produce commercially viable quantities of natural crystalline vein graphite. Currently Bogala Graphite mines and Kahatagaha Graphite mines are famous underground ...