We plan to accomplish our mission through biological and cultural programs and displays, green building design, citizen-science and other research, international exchange of information, the World Owl Hall of Fame, the International Festival of Owls, and other means.
Tsavorite or tsavolite is a variety of the garnet group species grossular, a calcium-aluminium garnet with the formula Ca 3 Al 2 Si 3 O 12.are in gem-quality over several carats (1 carat = 200 mg) in weight, tsavorite has been found in larger sizes. In late 2006 a 925-carat (185.0 g) crystal was discovered. It yielded an oval mixed-cut 325 carat (65 g) stone, one of the largest, if not the largest faceted tsavorites in the world.
Perovskite (pronunciation: /pÉËrÉvskaÉªt/) is a calcium titanium oxide mineral composed of calcium titanate, with the chemical formula Ca Ti O 3.he mineral was discovered in the Ural Mountains of Russia by Gustav Rose in 1839 and is named after Russian mineralogist Lev Perovski (1792â1856). It lends its name to the class of compounds which have the same type of crystal structure as CaTiO 3 (XII A 2+ VI B 4+ X 2â 3) known as the perovskite structure.