NASA Ames is named in honor of Joseph Sweetman Ames, a physicist and one of the founding members of NACA. At last estimate NASA Ames has over US$3.0 billion in capital equipment, 2,300 research personnel and a US$860 million annual budget.
Beryl, the mineral of which emerald is a variety, has a chemical composition of Be 3 Al 2 (SiO 3) 6. When pure, beryl is colorless and known as goshenite.. Trace amounts of chromium or vanadium in the mineral cause it to develop a green color.
Types of Emeralds. The emerald gemstone is a variety of the beryl mineral. The beryl turns green due to chromium and vanadium impurities. There are several different types of emeralds, most of which are named for their country of origin.