Great Scott (lunar sample)
Lunar Sample 15555, better known as "Great Scott", is a lunar sample discovered and collected on the Apollo 15 mission in 1971 in the Hadley-Apennine region of the Moon. The rock is a 9.614 kg (21.20 lb) olivine-normative basalt.
Source: Wikipedia — Great Scott (lunar sample) (CC BY-SA 4.0)