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Al Naslaa rock: Saudi Arabia's enigmatic sandstone block that's split perfectly down the middleThe Al Naslaa Rock Formation is a landmark in the Saudi Arabian desert formed of two big blocks of sandstone separated by a mysterious, pencil-thin gap. The gap is almost perfectly straight and ...
CALIFORNIA — If you are a "rock nerd" living in California or just love learning about geology, we've found some of the most ...
At 2.5 billion years old and weighing in at 2.5 tonnes, the banded iron formation is so heavy that Museum engineers had to reinforce the floor underneath it in Hintze Hall. 'The rock tells a ...
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