Wiktionary
zharchikhite
n. (context mineralogy English) A hydroxy fluoride mineral of aluminium that forms colourless, transparent crystals.
Wikipedia
Zharchikhite
Zharchikhite is a mineral, a hydroxy fluoride of aluminium; formula AlF(OH). It forms colourless, transparent crystals. Discovered in 1968, it is named after its original locality, the Zharchinskoya Deposit, which is in Buryatia, Russia.