KARL GAFF / SCIENCE PHOTO LIBRARY KARL GAFF / SCIENCE PHOTO LIBRARY
Polarised light micrograph of diffusion limited aggregation (DLA) of ammonium nitrate (NH4NO3) crystals. Ammonium nitrate is commonly used as a fertilizer in agriculture, and as an oxidizing agent in explosives. It is a colourless solid. When dissolved in water, it lowers the temperature of the water. When heated, it turns into water and nitrous oxide, or laughing gas.
Model release not required. Property release not required.