So what Did we really find out about the Moon when the Apollo missions were exploring it? What is the geology of the Moon?

Did you know that there were 28 varietal glasses found on the moon? That is alot of different colored volcanic glasses. These 17 specimens are analogues of the samples brought to Earth by the Apollo astronauts. Many of the samples are rare, and 4 glass vials contain carefully created simulants of lunar dust, lunar soil, and lunar volcanic glasses. Very hard to find items in this well-designed study set.

Also see: "Pocket Guide to Lunar Mineralogy" to go with it!