Nature grows limestone –
so can we!
Did you know that photosynthetic algae can make limestone? This natural process sequesters and stores carbon dioxide in mineral form, creating a carbon-negative limestone. So, we asked ourselves, if nature can grow limestone, why can’t we?
Coccolithophores are one group of algae that Minus Materials uses to produce carbon-negative limestone. These single-celled algae are the largest source of new calcium carbonate on the planet! They create intricate shells composed of calcium carbonate particles that basically act as an armor of limestone surrounding each cell. The algae-derived, carbon-negative limestone can then be used as a replacement for quarried geological limestone.