4 votes

Identifying dense magnetic rock with tubular features

The items look like slag, the dumped wasted product of metal smelting. The high density suggests a high metal content. The magnetic properties suggests a significant iron content and the smooth curved ...
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1 vote

Ocular similarities in Impact crater

To begin with, hydrothermal vents lasting for "thousands of years" is a very small period of time in geological time scales. As to your hypothesis concerning shocked quartz & magnetite ...
Fred's user avatar
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