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.
USES. Emerald is one of the most valuable gemstones. It is the most famous green gemstone, and its deep emerald-green color gives it its unique status. It is used in all forms of jewelry, and less transparent stones are cut into cabochons.
Associated minerals in these deposits are dolomite, pyrite, calcite, quartz and albite. Because of emerald's relatively high hardness and specific gravity, it is sometimes found in eluvial and aluvial deposits. Emerald is usually recognized by its color, form, hardness and specific gravity.