I’ve posted in a few rock groups and no one has been able to give a definitive answer, so thanks in advance for any info! Found in Jackson Co WI all together. Very dense, they DO NOT leave a streak on streak plate, non magnetic, they seem to be comprised of a sort of silica? But the weird patterns and flow lines have me stumped. I have videos that show them better but I understand you can’t post them here which is fine so I hope the pictures help enough. Thanks again!
