There are generally 3 categories: * Production: What's been mined & produced * Reserves: What's economically viable to produce * Resources: All the mineral w

There are generally 3 categories: * Production: What's been mined & produced * Reserves: What's economically viable to produce * Resources: All the mineral we know about, including that which is not economically or technically viable to mine Numbers (2021) I've seen show total world reserves as ~ 20MT. Total Resources are more like 90MT. Bolivia has a large percentage of the resources (ca 20MT), but no appreciable reserves (according to USGS) and I haven't seen production numbers from it.