Featured article: KREEP
KREEP is an acronym used in geochemistry to represent a mixture of K-potassium, REE-rare earth elements, and P-phosphorus. It is not only the main source of these elements on the moon, but also many other trace elements such as uranium, thorium, fluorine, chlorine, and zirconium.
So to get alloy ingredients for workable metals, nutrients for agriculture, industrial reagents and much more, special concentrations such as ilmenite and KREEP will play a vital role." - Peter Kokh (read more)