. . . "Kimberley mine" . . . . "Big Hole" . . . . . . "diamond mine" . . . . . "the big hole" . . . . . . . . . . . . . . . "Colesberg Kopje" . . . . . "Kimberley Mine or \\\"Big Hole\\\"" . "Big Hole" . "Kimberley Mine" . .