2Scarce Metals"The geochemically scarce metals are the enzymes of industry. It is their special properties that have led to such technological marvels as the generation and distribution of electricity, the telephone, radio and television, automobiles, aircraft, rockets, computers and the Internet. Yet it is in this same group of metals that many experts once believed shortages and restrictions of natural resources might appear. "
3Scarce Metals"When the world's annual production of iron has, for many years, been a 100 million tons or more, only four (really five) of the geochemically scarce metals have ever been produced at rates that exceed 1 million tons a year."page 280, Resources of the Earth
9Ferro AlloyWe will start with those metals used in making steel
10Chromium (Cr) Crustal average 96 ppm Uses Steel industry 12-36 wt% RefractoryChemicalPigment—yellow to bright orange or deep greenTanning--Cr in solution forms bonds with amino acids in leather—stabilizes organic material
11In Millions of metric tons Producers 2006In Millions of metric tonsIndia 3.3Kazakhstan 3.6South Africa 8.0Other 5.0
12In millions of metric tons ReservesIn millions of metric tonsIndia 25Kazakhstan 290South Africa 160World unavailable
16Locations of Podiform Chromite GSA TodayArticle: pp. 4–11 | Abstract | PDF (12.55M)Archean Podiform Chromitites and Mantle Tectonites in Ophiolitic Mélange, North China Craton: A Record of Early Oceanic Mantle ProcessesTable of Contents:IntroductionGeological SettingDiscussion and ConclusionsAcknowledgmentsReferences CitedFiguresOptions:Create Referencethis ArticleSearch CrossRef for:Articles Citing This ArticleSearch Google Scholar for:Jianghai LiTimothy M. KuskyXiongnan HuangJianghai Li1, Timothy M. Kusky2, *, Xiongnan Huang3 2002