Roses are red and so is blood

In a previous Chemlingo I looked at some words for red with chemical connections and here we look at some more. The names of two elements are related to red. Rubidium was named by Robert Bunsen and Wilhelm Kirchoff in 1861 from the colour of the distinctive lines in its atomic spectrum and takes its name from the Latin rubidus, meaning deep red. 

"Therefore we propose for this alkali metal, in respect to those two remarkable dark red lines, the name Rubidium with the symbol Rb from Rubidus which was used by the ancients to designate the deepest red."