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Fairville Granite
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Fairville Granite. Precambrian. Rockwood Park, Saint John, New Brunswick. Collector: R. Miller, 2011. Specimen width 11 cm. New Brunswick Museum. Rocks like the lava (Dacite) of the McBrien Lake Formation (554 ±14 million years old) and the Fairville Granite (548 ± 2 million years old) are pieces of the plate tectonics puzzle.
