FIELD: mining. SUBSTANCE: method for mineral mining from nonmagnetic bottom deposits includes collection of bottom ground into vessel during its moving over bottom and gravitation separation of useful mineral from barren rock which is effected in vessel filled with separating fluid with density exceeding that of water. Separation is combined in time with motion of vessel over bottom and unloading of vessel from barren rock. Mineral mining device has frame with supporting rear and front rollers and vessel for collection of bottom deposits. Rear roller of frame has rigidly secured ground taking buckets on its external cylindrical surface. Device also has means for unloading barren rock from vessel. EFFECT: higher efficiency. 2 cl, 1 dwg
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