Armstrongite
# Armstrongite

Armstrongite $(CaZr[Si_6O_{15}]·3H_2O)$ is a silicate mineral.

## Discovery and occurrence

It was first described in 1973 from an occurrence at Dorozhnyi pegmatite, Khanbogd District, Ömnögovi Province, Mongolia. It was named for the American astronaut Neil Armstrong.

