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sarongsong
2005-Jan-03, 12:08 AM
Another all-day trainwreck:
"Coltan, short for Columbite-tantalite is a metallic ore comprising Niobium and Tantalum..."
http://www.cellular-news.com/coltan/

frogesque
2005-Jan-03, 12:30 AM
This website (http://www.tanb.org/tantalum1.html) suggests that most tantalum ores come from Australia (25% - 35%)

From this page (http://www.tanb.org/coltan.html) (same site)


‘Coltan’ is an abbreviation used only in parts of Africa for ‘columbo-tantalite’, it is a local name or nickname. Mineral concentrates containing tantalum are usually referred to as ‘tantalite’. Columbite contains the element columbium, another name for niobium; tantalite contains tantalum.

Tantalite is the mineral or ore, and tantalum is the metallic element which can be extracted (or refined) from the ore. ‘Coltan’ is only a minor source of tantalum.

Not of world wide importance for cell phones though there are other compelling reasons to stop this wasteful war in Africa and also preserve the wildlife there.