Well I am going to test this in the fishroom - so it will probably be a week or two before I get it into a tank and get some photos. I will post photos though. I thought it was something different than the standard brown or red turface I have been using.
That's not true. If you go to northwest Montana you will see a lot of pale green rock in the rivers. Along with red rock. There is even what I call the highway of blood. They used the red rock in the paving and the road is red.