Gemstone irradiation produce mixtures of blue and yellow-to-brown colors, so heating is required as an additional procedure to remove the yellowish color. In some cases, the new colors induced by artificial irradiation may fade rapidly when exposed to light or gentle heat, so some laboratories submit them to a "fade test" to determine color stability. Sometimes colorless or pink beryls become deep blue upon irradiation, which are called Maxixe-type beryl. However, the color easily fades when exposed to heat or light, so it has no practical jewelry application. Gemstone irradiation The gemstone irradiation is a process in which a gemstone is artificially
Aquamarine Power 2009 Aquamarine Power announced an investment of £11m in the business. The principal investor during this investment round was ABB Group who invested £8m. The other investors during the round included Scottish and Southern Energy who invested £2.7m with other historical investors making up the balance of £300k. The investors in the business include: ABB, SSE, Sigma Capital Group, Scottish Enterprise and others. Aquamarine Power won several awards. In 2008 it was named Emerging Technology Promoter of the Year by Ernst & Young Euromoney Global Renewable Energy Awards. In 2009, it was named Innovator of the Year by the British