Gemstone usually found in. For example, diamonds, which have a cubic crystal system, are often found as octahedrons. Gemstones are classified into different "groups", "species", and "varieties". For example, ruby is the red variety of the species corundum, while any other color of corundum is considered sapphire. Other examples are the emerald (green), aquamarine (blue), red beryl (red), goshenite (colorless), heliodor (yellow) and morganite (pink), which are all varieties of the mineral species beryl. Gems are characterized in terms of refractive index, dispersion, specific gravity, hardness, cleavage, fracture and luster. They may exhibit pleochroism or double refraction. They may have luminescence
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