Search Results for: Mineral carving material
carats for colonial germany until world war i in . the deposits were very rich, so rich that stauch and others could often simply pick up diamonds from the valley floors. in other places, valley floors were systematically swept clean of their sediments, the oversize screened off and right-sized material
carried, carted or railed to treatment plants. innovative equipment was invented to treat the material – plietz jigs, schiechel pots, electric shovels, and the longest narrow gauge railway network in the world were introduced, all within the space of six years, to mine in this vast, challenging environment...
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