The ancient Egyptians and indigenous peoples of Bolivia are said to have already produced stones from plant extracts and natural minerals for the construction of their buildings. Forgotten for centuries, this technology is now being researched as a CO2-saving and sustainable alternative to concrete. In our ongoing project "In Fülle...Transformation zum Geopolymer" (engl. In abundance...transformation to the geopolymer) we are looking at the transformation of unexploited resources, such as construction waste, ashes, soil or industrial waste. In an experimental way, we test the production and application possibilities of the technology and its resulting material. For the exhibition at the Hospitalhof Stuttgart, the visionary and creative power of art flows into the exhibition in equal measure as the cognitive perspective of science. The result is objects at the interface of art and design, whose appearance ranges from a painterly gesture to a usable seat.