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Rock hounds are on the hunt for new carbon minerals

A new challenge has scientists searching for dozens of unknown, beguiling crystals

By
11:04am, October 4, 2016
carbon minerals

CAN YOU DIG IT?  Abellaite, ewingite and leószilárdite (clockwise from left) are three of the seven carbon-bearing minerals recognized by the International Mineralogical Association in the past year. A search is on to find dozens more undiscovered carbon minerals.

Like many abandoned mines, the Eureka uranium mine in northern Spain is a maze of long, dank tunnels. Water seeping down the walls carries dissolved substances that percolated through rocks overhead. As the water evaporates into the tunnels’ cool air, some of those dissolved ingredients combine to make new substances in solid form.

“The mine is a crystallization factory of weird minerals,” says Jordi Ibáñez-Insa, a physicist at the Institute of Earth Sciences Jaume Almera in Barcelona.

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