Beryl over , and its dimensions were long and in diameter. The largest cut aquamarine gem is the Dom Pedro aquamarine, now housed in the Smithsonian Institution's National Museum of Natural History. The ancient Romans believed that aquamarine would protect against any dangers while travelling at sea, and that it provided energy and cured laziness. Emerald is green beryl, colored by trace amounts of chromium and sometimes vanadium. Most emeralds are highly included, so their brittleness (resistance to breakage) is classified as generally poor. The modern English word "emerald" comes via Middle English "Emeraude", imported from modern French via Old French
Aquamarine (novel) from her six sisters, and is suffering from the chlorine in the pool. Hailey and Claire advise Aquamarine to return to the ocean, however she refuses, because of her new attachment to Raymond. Claire and Hailey read books that contain information pertaining to marine life-forms, trying to find an answer to Aquamarine's troubling conditions. They learn that mermaids cannot survive on land for more than a week. The necessity of returning Aquamarine to the ocean is thus made more urgent. In order to persuade Aquamarine to return to her home, Hailey and Claire arrange that she will spend one evening