Encyclopedia - Zirconium: Encyclopedia - Zirconium
Zirconium is a chemical element in the periodic table that has the symbol Zr and atomic number 40. A lustrous gray-white, strong transiti...   » Read the article

Encyclopedia - Zirconium: Encyclopedia Ii - Zirconium - History
Zirconium (Arabic zarkûn from Persian zargûn meaning "gold like") was discovered in 1789 by Martin Heinrich Klaproth and isolated in 18...   » Read the article

Encyclopedia - Zirconium: Encyclopedia Ii - Zirconium - Occurrence
Zirconium is never found in nature as a free metal. The principal economic source of zirconium is the zirconium silicate mineral, zircon ...   » Read the article

Encyclopedia - Cubic Zirconia: Encyclopedia - Cubic Zirconia
Cubic Zirconia (or CZ) is zirconium oxide (ZrO2), a mineral that is extremely rare in nature but is widely synthesized for use as a diamo...   » Read the article

Encyclopedia - Calcium: Encyclopedia - Calcium
Calcium is a chemical element in the periodic table that has the symbol Ca and atomic number 20. Calcium is a soft grey alkaline earth me...   » Read the article

Encyclopedia - Hafnium: Encyclopedia Ii - Hafnium - Notable Characteristics
This is a shiny silvery, ductile metal that is corrosion resistant and chemically similar to zirconium. The properties of hafnium are mar...   » Read the article

Encyclopedia - Cubic Zirconia: Encyclopedia Ii - Cubic Zirconia - History
Since 1892 the yellowish, monoclinic mineral baddeleyite had been the only natural form of zirconium oxide known. Being of rare occurrenc...   » Read the article

Encyclopedia - Hafnium: Encyclopedia Ii - Hafnium - History
Hafnium (Latin Hafnia for "Copenhagen", the home town of Niels Bohr) was discovered by Dirk Coster and Georg von Hevesy in 1923 in Copenh...   » Read the article

Encyclopedia - Cubic Zirconia: Encyclopedia Ii - Cubic Zirconia - Technical Aspects
Cubic zirconia is, as its name would imply, crystallographically isometric, and as diamond is also isometric, this is an important attrib...   » Read the article

Encyclopedia - Inner Mongolia: Encyclopedia Ii - Inner Mongolia - Economy
Farming of crops such as wheat takes precedence along the river valleys. In the more arid grasslands, herding of goats, sheep and so on i...   » Read the article

Encyclopedia - Poços De Caldas: Encyclopedia Ii - Poços De Caldas - Economy
Known principally for its thermal baths, the city has resort hotels and casinos. The local soils are rich in minerals and yield thorium, ...   » Read the article

Encyclopedia - United States Naval Reactor: Encyclopedia Ii - United States Naval Reactor - Power Plants
Naval reactors are pressurised water types, which differ from commercial reactors producing electricity in that: they have a high power ...   » Read the article