vietnam tin mine thick machines photo of bauxite mineral

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Laterite - Wikipedia

Bauxite ore is the main source of aluminum.: 65 Bauxite is a variety of laterite residual sedimentary rock so it has no precise chemical formula. It is composed mainly of hydrated alumina minerals such as gibbsite Al OH 3 or Al 2 O 3. 3H 2 O in newer tropical deposits; in older subtropical temperate deposits the major minerals are boehmite γ-AlO OH or Al 2 O 3.H 2 O and some

Past Photo of the Day images - Mindat.org - Mines Minerals

From this mine in a 100-year long period more than 100 tons of pure silver and up to 10 tons of gold were mined. About the dimensions of this place: next to the pillar you can see the person 1.8 m tall for scale. Photo taken with long time exposure scene lighted with burning of pyrotechnic compound. Mindat.org Photo of the Day - 18th Nov 2020

Geology and Earth Science News Articles Photos Maps and More

Geology.com is one of the world& 39;s leading portals to geology and Earth science news and information for rocks minerals gemstones energy volcanoes earthquakes careers geologic hazards and more.

Global Top 500 Mining and Metal Companies 2010

Gross Domestic Product—Mining and Mineral Manufacturing 2002–2009 Value of Canadian Mineral Production 1999–2009p Canada & 39;s Top 10 Minerals by Value of Production 1999 and 2009

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