BEN JOHNSON / SCIENCE PHOTO LIBRARY BEN JOHNSON / SCIENCE PHOTO LIBRARY
Sample of kernite. Kernite is a monoclinic crystalline form of sodium tetraborate tetrahydrate. It is soft and very light, and may form very large crystals (one of 8.75 metres has been recorded). Kernite forms in playa lakes near hydrothermal springs, and is a principal ore of boron.
Model release not required. Property release not required.