Update: In the process of doing a water holding test. Cut a strip into the bottom of one of the new plastic coffee cans. Filled about 6" of soil tamped it with a brick, and then filled it with water. So far so go, will see what 24 hours does.
The one nice thing about the making a slurry and letting it sit, is the clay forms at the top and you can spoon some of it out and examine it, mold it, let it dry out, and it is 100% clay.
I found it interesting that in two different areas on our property I ended up with two completely different looking clays. The one is basicly tan, where the other is chocolate dark brown. Is there a way to identify clays by color?
