10048 - Grey regolith breccia
We would like to thank the following for the use of this sample:
10048 is a grey regolith breccia (weight 579 grams) similar in composition to Apollo 11 soil. It is a glass matrix breccia derived from the soil by meteorite impact. The matrix contains small clasts of mare basalt along with orange to red glass beads (~100 microns across). Detailed examination of the sample has produced an estimate for the source of the regolith with about 75% thought to be local mare basalt and about 25% from the lunar highlands.
Interestingly, sample 10048 was one of those used in the "biopool" - samples used to check for pathogens and life forms during the initial Apollo 11 quarantine.
Further details of this and other Apollo samples are here: http://curator.jsc.nasa.gov/lunar/
Ma = Millions of years ago
Rock forming mineral: