I was in 3rd or 4th grade, and we were studying geology in class at Founders Memorial School. I already had a decent rock collection, but on my way to the bus stop that February morning I found this intriguing golf-ball sized blue rock that looked like it would be a nice addition, so I tossed it in my backback. However, in class later that day, the rock was gone! Where could it have gone? Of course, my rock wasn’t a rock at all but simply an abnormally large chunk of Road Salt.
No idea why this memory resurfaced, but I still remember thinking that the light blue color of the rock was really cool. God knows what that stuff consisted of in the 70s.