Chromium is a hard silvery metal with a blue tinge. Like some of the other metals in this group, Chromium may or may not have a biological role in humans. There is some indication that it is an essential element in the assimilation of glucose and is found in brewer’s yeast, wheat germ and in kidney. The French chemist Nicholas Louis Vauquelin first isolated it and was amazed by the range of colors it produced in solution. He hence named it from the Greek word “chroma” meaning color. The green in emeralds and the red in rubies are from chromium.
Chromium Sound Sketch