We made the rounds at the volcanic crater where islanders quarried the stone for Moai. I presume they tried all sorts of rock over the centuries, and they determined this volcano to produce the best stone for the job. They would carve the stones at the quarry, transport them miles overland, and then erect them. Only once the Moai had been erected did they add eye sockets and eyes, which were made of white coral and volcanic glass.
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