Nickel (Ni) and cobalt (Co) are critical elements for modern technologies, with high-grade Ni and Co ores becoming increasingly scarce. Mafic and ultramafic deposits are low-grade, abundant alternatives to traditional Ni and Co ores. However, new methods that make Ni and Co extraction and recovery from these deposits economically viable are needed. Nickel (Ni) and cobalt (Co) are critical elements for modern technologies, with high-grade Ni and Co ores becoming increasingly scarce. Mafic and ultramafic deposits are low-grade, abundant alternatives to traditional Ni and Co ores. However, new methods that make Ni and Co extraction and recovery from these deposits economically viable are needed. Analytical Chemistry Materials Science Phys.org – latest science and technology news stories