System and method thereof for off shore mining

An off shore mining system comprising:

• a dredge vessel having thereon
• a dredging unit adapted for excavate of water bodies and procurement of sediment and debris;
• at least one gravity separator adapted for separation and exclusion of oversized particles from sediments and debris;
• at least one spiral classifier coupled to at least one gravity separator wherein at least one spiral classifier is configured to receive finer particles of sediments and debris to extract total heavy minerals;
• at least one discharge conduit for tailing of wastes, leftover after extracting total heavy minerals, back into water bodies;
• a barge, operably coupled in conjunction to the dredge vessel, configured to acquire and process the total heavy minerals, wherein the barge has thereon
• a dewatering unit configured to expel water absorbed by the total heavy minerals;
• at least one magnetic separator for separation of desired minerals from total heavy minerals based on magnetic properties of the minerals;
• at least one electro-magnetic separator for separation of desired minerals from total heavy minerals based on electro-magnetic properties of the minerals;
• at least one density separator for further separation of desired mineral from total heavy minerals based on density of minerals;
• and
• at least one discharge conduit for tailing of wastes, leftover after extraction and separation of desired minerals, back into water bodies.