Enstatite is one of the few silicate minerals that have been observed in crystalline form outside our Solar System, particularly around evolved stars and Planetary Nebulae such as NGC 6302.
NGC | NGC 7006 | NGC 6946 | NGC 6729 | NGC 6541 | NGC 6302 | NGC 5866 | NGC 5823 | NGC 55 | NGC 5286 | NGC 3242 | NGC 3169 | NGC 2770 | NGC 1999 | NGC 1851 | NGC 1261 | NGC 1097 |