Global Economic Prospects - Forecasts. Global Economic Prospects examines trends for the world economy and how they affect developing countries. The report includes country-specific three-year forecasts for major macroeconomic indicators, including commodity and financial markets. Global Economic Prospects.
Sources of tin. Tin is relatively rare, making up only about 2 parts per million of the Earth's crust, according to the U.S. Geologic Survey. Tin is extracted from various ores, chiefly from Cassiterite (SnO 2). The metal is produced from reducing the oxide ore with coal in a furnace.Very little tin has been found in the United States, much of it in Alaska and California. According to Los Alamos National Laboratory, the metal is mainly produced in Malaya, Bolivia, Indonesia, Zaire, Thailand and Nigeria.ery little tin has been found in the United States, much of it in Alaska and California. According to Los Alamos National Laboratory, the metal is mainly produced in Malaya, Bolivia, Indonesia, Zaire, Thailand and Nigeria.
However, because of their geochemical properties, rare earth elements are typically dispersed and not often found concentrated as rare earth minerals in economically exploitable ore deposits. It was the very scarcity of these minerals (previously called earths) that led to the term rare earth.espite their name, rare earth elements are â with the exception of the radioactive promethium â relatively plentiful in Earth's crust, with cerium being the 25th most abundant element at 68 parts per million, or as abundant as copper.