BRAIN BOLT on Instagram: "An 11-second clip shows a magnetic drum separator extracting magnetite (Fe₃O₄) from iron-rich black sand. As the green drum spins, powerful internal magnets attract the dark iron particles, forming a dense, brush-like layer on the surface, while the lighter, non-magnetic sand falls away untouched. The separation works because magnetite is strongly ferromagnetic, meaning it responds intensely to magnetic fields. This allows dry magnetic separation systems to achieve effi

Cubiccode Education Foundation on Instagram: "This is how iron is extracted from iron-rich sand, using a combination of magnetic separation and high-temperature processing. The sand is first passed through magnets to isolate iron-bearing particles, which are then smelted to remove impurities and produce usable iron. It’s a fascinating example of how raw natural materials are transformed into one of the most essential metals powering modern civilisation. #iron #metallurgy #mining #engineering #in