Rock 175 ~ Quartzy ~ Riverside CA ~ January 13, 2016

I found this along a pond area in Riverside. A large pond. A small lake. Lots of geese, lots of ducks, lots of coot-like birds, lots of people. It seemed like it might even be a native rock. I dug it out of the bank and washed it and there are still a few grass stains on one side. Measures approximately 2".