ممکن است میلیاردها عنصر خاکی کمیاب در خاکستر زغال سنگ آمریکا پنهان شده باشند

Billions in rare earth elements may be hiding in America’s coal ash

Scientists are looking to diatoms, sea sponges, and plants for a cleaner way to recover rare earth elements and other valuable minerals hidden inside coal ash, red mud, and mine tailings. The bio-inspired approach could turn massive industrial waste piles into useful materials while reducing energy use, harsh chemicals, and reliance on new mining.