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So cool:
Link to tweet
300 million years ago in Arkansas, oceanic rock was pushed up when continents collided
hot silica rich waters drained down the fractures forming these ice clear quartz crystals, made accessible when the mountains began to erode
hot silica rich waters drained down the fractures forming these ice clear quartz crystals, made accessible when the mountains began to erode
2 replies
= new reply since forum marked as read
= new reply since forum marked as read
