The rocks are called olivine, and are very common. They indeed look very promising for CO2 absorption. https://www.betterworldsolutions.eu/is-olivine-the-solut

The rocks are called olivine, and are very common. They indeed look very promising for CO2 absorption. https://www.betterworldsolutions.eu/is-olivine-the-solution-against-climate-change-and-ocean-acidification/ https://www.betterworldsolutions.eu/is-olivine-the-solution-...