Gold mining is a global business with operations on every continent, except Antarctica, and gold is extracted from mines of widely varying types and scale. There are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to reach deeper deposits.
ADAMAS FOR DIAMONDS
The extractive industry employs a range of techniques for mining diamonds, starting with conventional open-pit operations. The world's largest mine, the Debswana-owned Orapa project in Botswana, uses open-pit mining to extract diamonds located up to 250m below the surface The process of diamond creation begins 100 miles underground where tremendous heat and pressure crystallize carbon into rough diamonds