You may not have heard of coltan, but you have it in your cell phone, laptops, pagers and other electronic devices. It is important to everyday communication in the United States, but it is making the conflict in Congo more complicated.

What Is Coltan?

Columbite-tantalite — coltan for short — is a dull metallic ore found in major quantities in the eastern areas of Congo. When refined, coltan becomes metallic tantalum, a heat-resistant powder that can hold a high electrical charge. These properties make it a vital element in creating capacitors, the electronic elements that control current flow inside miniature circuit boards. Tantalum capacitors are used in almost all cell phones, laptops, pagers and many other electronics.