Discovery Team
Oleg I. Siidra
Diana O. Nekrasova
Rick Turner
Anatoly N. Zaitsev
Nikita V. Chukanov
John Spratt
Yury S. Polekhovsky
Mike Rumsey

13

Somersetite

Verified September 2017   

Pb8O2(OH)2(CO3)5

Somersetite was found at the Torr Works quarry in Somerset in the United Kingdom. It was named for the county in southwest England where it was discovered. Somersetite is green or white, hexagonal in shape, and has a structure unseen before in either minerals or inorganic compounds. Its structural architecture is unique among all other known layered structures. Somersetite is distantly related to the minerals hydrocerussite and plumbonacrite, known as the main constituents of white paints of the past. The Department of Mineralogy, Saint-Petersburg State University in Saint-Petersburg, Russia, is home to the precious holotype sample of this new carbon mineral.

Images


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Somersetite, courtesy of Oleg Siidra.

Graham Richards [CC BY-SA 2.0 via Wikimedia Commons

References: Cambridge Core, Mindat | Report an error or offer more information
Somersetite. Photo courtesy of Oleg Siidra.

cc 2018. Carbon Mineral Challenge.