Armalcolite, Tranquillityite and Pyroxferroite

Armalcolyte is named after the three Apollo 11 astronauts: Neil Armstrong, Buzz Aldrin, and Michael Collins.

There's an even bigger clue in the second of these three names.

All three have since been found on Earth, and armalcolite has been synthesized in the laboratory.

© Haydn Thompson 2021