Eastern shore of the Dead Sea, with salt concentration of over 20% sodium chloride (also rich in magnesium, calcium and potassium chlorides, Jordan

Pile of mined salt at Maras salt marsh terraces, Salinas de Maras, Cuzco Region, Peru, South America

Bunches of bananas, Bangkok, Thailand

Banana Tree, Queensland, Australia

Brown paper bag of bananas

The diffusion of potassium cations across a semipermeable membrane.

Middle East, Jordan, Dead Sea, 400 metres below sea level

Borlotti beans are a legume rich in calcium and potassium.

Aerial view of TexasGulf Potash Ponds which are solar evaporation ponds used in the process of mining potash. Potash, a water-soluble potassium salt is extracted and blue dye is added to increase the rate of evaporation. It is mainly used in fertilizer products but also in the making of soap, glass, ceramics and batteries. The mine is currently owned and operated by Intredpid Potash Inc and the ponds cover 400 acres of land surrounded by sandstone cliffs and wilderness near Moab, Utah, USA, Utah, United States of America

Agriculture