- Year: 2021
- Material: Glass made of sand recycled from an installation by the artist Lee Mingwei at the Gropius Bau’s atrium
- Commission: Gropius Bau
- Production: Jongeriuslab
- Category: Exhibition
- Category: One-offs / experiments
For Grain Wheel, grains of sand that were left over from an artwork by Lee Mingwei at Gropius Bau, Berlin in 2020 were melted and blown to form glass elements. The varying colour of the glass depends on the properties of the provided sand.