Pudding Stone

In Michigan, there are probably 3 great rocks to be found. Petoskey stones, agates, and pudding stones. 

Our neighbor Barry works at a gravel pit, and his front gardens are filled with pudding stones, but this is the biggest one he has brought home. It is probably 2.5 feet high, and 5 feet in circumference.

Getting a little scientific, pudding stones are a type of sedimentary rock known as a conglomerate. In Michigan, the white surrounding the smaller stones is quartzite. The quartzite came from sand that was transformed due to heat and pressure. The theory is that the rocks were formed in Canada around 2 billion years ago, and were carried to Michigan in the till of the Laurentide glacier. 

ENOUGH SCIENCE! 

Mr. Barry got himself
a beauty of a rock,
and he doesn't have to put it...
under key and lock.