Coltan is refined into tantalum, which is then used to manufacture smartphones and other electronic devices Kenya has discovered its first deposits of the valuable mineral coltan, the mining ...

Kenya has discovered its first deposits of the valuable mineral coltan, the mining minister has said. The rare mineral is used to manufacture electric car batteries, mobile phones and other ...

News has it that a rare ore, columbite-tantalite (coltan), was discovered around the Kiritiri, the headquarters of the sub-county. Parts of this sub-county are incredibly rocky; no wonder colten ...