Over the next four years, teams around the world will study samples of carbon minerals submitted not only by academic mineralogists, but by amateur collectors and explorers. Got some unusual-looking minerals you’ve collected and stored in your garage? Head to the Carbon Mineral Challenge’s website to see whether they might be worth scrutinizing, says Robert Hazen at the Carnegie Institution’s Geophysical Laboratory and executive director of DCO.

 

http://www.scientificamerican.com/article/worldwide-hunt-begins-for-missing-carbon-minerals/