Mineral exploitation
Lasky’s principle
Generally, as the purity of a mineral decreases, the amount of the mineral present increases exponentially

Reserves vs resources
- Resource: all of the material that exists in the lithosphere; that that can be theoretically and currently economically exploited
- Reserve: the amount of a resource that can be currently exploited, economically, using current technology
- Reserves make up part of a resource
- Market price increases or technology improves → increased reserves
- Market price decreases → decreased reserves