Robert Bunsen and Gustav Kirchhoff discovered the element Rubidium in 1861 with the help of a spectroscope while analyzing a mineral called lepidolite. When the mineral was heated, Bunsen and ...

Rubidium (Rb) is a soft and highly reactive member of the alkali group of metals. Rubidium is widely distributed throughout nature, but only occurs in small amounts (its abundance in the earth’s crust ...

China has achieved a technological breakthrough in the production of rubidium, the South China Morning Post has reported, as Beijing looks to expand its dominance in the critical minerals supply chain ...