Hello,
I suspect that this is a terrestrial ore rock, but I'd appreciate any advice from the experts. I live about 30 minutes north of St. Paul, MN, and our property was a farm field before the houses were built in 1976. To my knowledge, there should be no slag sources in this area. We also live on a hill that is full of rock (looks like river rock) and clay. While tilling the garden, this rock glimmered a little bit in the sun. There are no signs of gas bubbles, and it is worn smooth on one side and rough on another. The smooth sides are positioned in a way that is consistent with entering the atmosphere. IT is HIGHLY metallic and clings to a magnet, but doesn't seem to be magnetic itself. On the rough side, there are tiny sparkles when you shine a light in it. Probably wishful thinking on my part, but any advice is appreciated:
I suspect that this is a terrestrial ore rock, but I'd appreciate any advice from the experts. I live about 30 minutes north of St. Paul, MN, and our property was a farm field before the houses were built in 1976. To my knowledge, there should be no slag sources in this area. We also live on a hill that is full of rock (looks like river rock) and clay. While tilling the garden, this rock glimmered a little bit in the sun. There are no signs of gas bubbles, and it is worn smooth on one side and rough on another. The smooth sides are positioned in a way that is consistent with entering the atmosphere. IT is HIGHLY metallic and clings to a magnet, but doesn't seem to be magnetic itself. On the rough side, there are tiny sparkles when you shine a light in it. Probably wishful thinking on my part, but any advice is appreciated: