Among the granite, quartz and basalt, there is a variety of minerals. Here are some of the more interesting ones:
This serpentine mineral consists of long strands. When I brought it into the house, the rock dried out and started shedding tiny microscopic shards of glass-like material that penetrated the skin like fiberglass -- except that they were more brittle than fiberglass. Handling the dry mineral is now painful. Needless to say, it stays outside.
This yellowy-greenish deposit is dull in spite of the photo. From a distance is has a dull sheen and is not shiny at all. The color has a bit of yellow and green, and there doesn't seem to be coherent crystallization.
This greenish thing is a puzzle. It seems to be deposited on the rock matrix. It has shiny specs shot through it.
I have a mineral guide (Roger Tory Peterson) from the 1960's but a lot of the photos are in black and white and of poor quality. It was no help in trying to identifying these specimens.
I would like to learn more about rocks and minerals. I really do give a shist about identifying these things.