Black Sand Concentrates - Gold Fever ProspectingBlack sand concentrates are what you end up with after first processing of your gold bearing material. It is usually a combination of minerals in . These black sands will weigh a third (1/3) to a fourth (1/4) the weight of gold (Au). Gold has a specific gravity of 15 to 19.3 .. Regular price: $135.00. Sale price: $119.00, 2/$219.00.gold baring black sands for sale,We buy gold black sand concentrates, gold flakes and gold nuggets.Sell us your gold ore, gold flake and natural gold nugget, gold black sands. . Black sands from gold bearing areas can contain small amounts of gold,.
gold baring black sands for sale