trend_tok_hub on Instagram: "The video depicts magnetic separation, a low-energy process using strong neodymium magnets to extract magnetite (Fe₃O₄) from iron-rich black sands, forming a concentrated stream for subsequent smelting into pig iron. This technique, employed in commercial operations like New Zealand's Waikato North Head ironsand mines since the 1960s, recovers up to 60% iron content from beach deposits while minimizing excavation. Shared by science curator @Rainmaker1973 , the clip's

Separation of Mixture | Sand+Iron pills | Usmania group of schools and colleges