One of the projects we have up on our home site is to make more room for the concrete pumping equipment and trucks. Dozy has been getting a bit of a workout digging into the side of the hill to make more space. The clay soil we have is remarkably tough and rock-like. Interestingly, when it is exposed to air, the clay very quickly starts to break down and crumble.
Is this a fossilized dinosaur eye or simply the exposed formation of Saprolitic Clay?