Awesome video. I have been walking my dog today and was picking up rocks for my aquarium. The highway department uses Creek run for the shoulder of the road I live on. But I try to pick rocks of the same type for decorating my aquariums. I have been into rocks since I was a wee tike. At 10 years old I bought my favorite " Identifying Rocks and Minerals " book because I got into aquariums and loved putting cool rocks in my aquariums. I had to make sure that the rocks didn't release toxins into the water. That got me into learning about all the rocks in my aquariums. When I saw your rock hunting video, I felt a kindred spirit. I have supported subscribed and rang the bell.