I'm a science teacher; my areas of expertise are physics and astronomy, not geology by any means. So, I'm asking the internet for help identifying some stragglers from a rock/mineral collection I inherited with my classroom. I know that some of these look pretty generic, and it can be hard to ID a rock from a picture in the most of times, but I'm operating under the assumption that these are at least fairly interesting examples, because they were amid a collection of "Mineral of the Rock Club" packages from 1978-1980.