Old Cape Town Mines Cape Town Gem Mineral Club
May 11, 2010· THE HOUT BAY MANGANESE MINE. The Western Cape has a number of manganese deposits but the reserves are not large, and some have a high phosphorus level. In the Peninsula deposits were known and worked on Constantiaberg in 1880, but the best deposit is on the mountain slopes above present day Chapman''s Peak Drive, near Hout Bay.