What is true about most higher grade, metallic ores

1 answer

Most higher grade metallic ores are economically valuable and contain a high concentration of the desired metal. They are typically extracted through mining and processing techniques to separate the metal from the surrounding rock and minerals. Higher grade metallic ores are often formed through geological processes such as hydrothermal deposition or magmatic segregation, which concentrate the metal in specific locations within the Earth's crust. These ores are of interest to mining companies because they are more cost-effective to extract and process compared to lower grade ores.