NaKAlSi2O6H2O

NaKAlSi2O6H2O, also known as nakalite, is a rare mineral belonging to the feldspathoid group. It was first discovered in the Nakhlite meteorite, hence its name, and has since been found in other meteorites and lunar samples. Nakalite is a sodium-potassium-aluminum-silicate hydrate, with the chemical formula NaKAlSi2O6H2O. It crystallizes in the monoclinic system and typically forms small, colorless to white crystals or granular masses.

The mineral is notable for its unique composition and structure. It is one of the few minerals that contain both sodium and potassium in its formula, and it is the only known natural occurrence of a feldspathoid with a hydrated structure. Nakalite's formation is thought to be related to the alteration of other minerals in the presence of water, possibly during the impact events that formed the meteorites.

Nakalite has been studied for its potential implications in understanding the geological processes on other celestial bodies, particularly Mars and the Moon. Its presence in meteorites and lunar samples suggests that similar minerals may exist on these bodies, providing insights into their geological history and the role of water in their formation.

Despite its scientific interest, nakalite is not commonly found on Earth and is primarily studied in the context of extraterrestrial materials. Its rarity and unique properties make it a subject of ongoing research in mineralogy and planetary science.