Sierra Leone woos miners to clean energy with $11 billion plan
Most mining firms rely on their own diesel supplies to extract iron ore, diamonds, rutile and bauxite in the resource-rich country.
Incredible work goes into retrieving diamonds before they arrive in your local store.
They originated from kimberlite pipes. The last kimberlite eruption occurred over 25 million years ago. Alluvial mining is a less common method for mining diamonds. Rather pipe mining is a more popular and efficient. The differences between the two are interesting.
