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Cordwainer Smith's story "On the Gem Planet" features a humongous green ruby, intended for use in a gigantic laser weapon.
It should not be confused with a scarlet emerald. If nothing else, because it's intended for a laser weapon, it is almost certainly not many-fauceted.
It should not be confused with a scarlet emerald. If nothing else, because it's intended for a laser weapon, it is almost certainly not many-fauceted.
