Articles by Marilyn Scales





USGS, Apple create new waste rock metric

A new metric to quantify the amount of waste rock generated by mining critical minerals has been created by the U.S. Geological Survey and Apple. Called the “rock-to-metal ratio,” the…









By continuing to browse you agree to our use of cookies. To learn more, click more information

Dear user, please be aware that we use cookies to help users navigate our website content and to help us understand how we can improve the user experience. If you have ideas for how we can improve our services, we’d love to hear from you. Click here to email us. By continuing to browse you agree to our use of cookies. Please see our Privacy & Cookie Usage Policy to learn more.

Close