Rob, I have found several pieces that look just like your pictures,,,,extremely heavy for their size. Here's a recommended test off the internet that might be of some help. STREAK TEST Iron ore is the most common meteor-wrong. Magnetite especially is very magnetic (hence its name) and hematite may or may not be mildly magnetic. Both these minerals may possibly be distinguished from meteoritic material by a characteristic known as 'streak'. You can test the streak very simply. If you take a common ceramic tile, such as a bathroom or kitchen tile, it has a smooth glazed slide and an unfinished dull side which is stuck to the floor/wall when installed. Take the sample which you think is a meteorite and scratch it quite vigorously on the unglazed side of the tile. If it leaves a black/gray streak (like a soft leaded pencil) the sample is likely magnetite, and if it leaves a vivid red to brown streak it is likely hematite. A stone meteorite, unless it is very heavily weathered will not normally leave a streak on the tile. You say that you don't have a ceramic tile? You can use the bottom of an ceramic coffee cup or you can also use the inside of your toilet tank cover. (the heavy rectangular lid on top of the tank)