- منطقة بودونغ الجديدة ، شنغهاي ، الصين .
- [email protected]
To learn more about the history of gemstones in Brazil, go to the Museu das Minas e do Metal(The Museum of Mines and Metals) in Belo Horizonte, Minas Gerais. As well as replica mines, there are also several exhibitions that show the country's finest samples of gemstones and metals.
اقرأ المزيد
The name alone speaks volumes. After all, "Minas Gerais" means "General Mines", and its' residents call themselves "mineiros", "miners". Yet the mood in the state has shifted. Minas Gerais is the world's leading producer of iron, gold, zinc and niobium, and the second most important producer of aluminium.
اقرأ المزيد
Mining is an activity that has had a considerable impact on the history of Brazil, whether from an economic, political, social, geographic, or demographic, artistic, and religious point of view. Its history is stamped by several phases starting in 1693 with gold discoveries in Minas Gerais, and diamond findings in 1729. This lasted almost 150 …
اقرأ المزيد
Abstract Palladium-bearing minerals from the Cauê iron mine, Itabira District, Minas Gerais, Brazil, are found in gold-rich jacutinga, a hydrothermally-altered Lake Superior-type carbonate-bearing oxide facies iron-formation. Palladium occurs as: native palladium with trace contents of Au, Fe and Cu; palladseite ((Pd,Cu,Hg)17Sc15), which …
اقرأ المزيد
As per the Annual Brazilian Mining Report (National Mining Agency:2023), Brazil ranks fifth globally tin production, yielding 22,000 FMT annually. The main regions for tin production include the states of Rondônia, Amazonas, Pará, Mato Grosso, and …
اقرأ المزيد
Minas Gerais, large inland estado (state) of southeastern Brazil. It is the country's storehouse of mineral riches, as indicated by its name, which in Portuguese means "General Mines." The state is bounded to the north by the states of Goiás and Bahia; to the east by Bahia, Espírito Santo, and Rio
اقرأ المزيد
