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Minerals and Stones


We transform CO2 into carbon-negative minerals which are used in construction to reduce cement use and store captured carbon. 

How we do it


CO2 gas


Our process begins by capturing CO2 gas, either directly from the air or from specific emission points like cement kilns, coal power plants, and beer fermenters. It is then mineralised by the MEDUSA system. Here, CO2 is combined with biological agents and waste materials to produce carbon-negative limestone and other carbonate crystals. The aggregate is collected and used in concrete as a cement supplement.

Who makes it

Sofia Iglesias-Lobatch

Elene Lominadze

Alex Van de Steen, PhD

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