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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.
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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)