Coltan

Coltan is a dark rock.

It is found in the ground. We use it to make phones. It also helps make computers work. This rock helps us stay connected. Do you use a phone?

35 words

🖼️ Images & Media (2)

Ferrocolumbite-Manganotantalite-rh3-36a.jpg

Rio Inírida - panoramio.jpg

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📚 Content adapted from Wikipedia | Readability: FK 13.3 | Vital Level 5