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 Power Renewable Energy Association. It also got Innovation Award for Energy of the Engineer Technology and Innovation Awards 2009 and Scottish Green Awards for the Best Green Industry SME. In 2010 it was listed on GlobalCleantech 100 list. On 28 October 2015, BBC News reported that Aquamarine Power had called in administrators. No buyer was found and less than a month later, on 20 November, the company ceased to trade with the loss of fourteen jobs. Aquamarine Power Aquamarine Power was a wave energy company, which was founded in 2005 to commercialise a wave energy device concept known as the Oyster