THE DIAMOND DEPOSITS OF KALIMANTAN, BORNEO
that "in 1880 the mines on the Sekayam River were worked by about 40 Chinese only, those in Landalz gave employment to about 350 workers." With the discovery of diamonds in South Africa in the late 19th century, Borneo's diamond production be- came insignificant. Whereas an estimated 6,673 ct of diamonds were produced in western …