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Tin resources of Brazil

January 1, 1994

Annual tin production in Brazil, most of it from cassiterite placer deposits in Rondonia Territory, amounts to about 4,000 metric tons (4,400 short tons) of concentrate containing 66 percent tin, much of which is consumed by Brazilian industry.

Reserves of cassiterite concentrate in the placers of Rondonia district are estimated at about 160,000 (176,000 short tons) containing 66 percent tin. Extensive undiscovered resources of cassiterite possibly exist in southern Rondonia Territory and to the east of the Territory in northern Mato Grosso, southern Amazonas, and southern Para. Numerous occurrences have been reported in these regions and as far to the east as the headwaters of the Tapajos and the Xingo Rivers.

Minor deposits or occurrences of cassiterite (or lode deposits about which there is only minimal information available) are located in Para, Amapa, Paraiba, Rio Grande do Norte, Ceara, Bahia, Minas Gerais, Goias, Sao Paulo, and Rio Grande do Sul.

All the lode tin deposits are dated or enclosed in rocks that date as Precambrian B (900 to 1,300 m.y.).

Citation Information

Publication Year 1974
Title Tin resources of Brazil
DOI 10.3133/ofr74333
Authors Max Gregg White
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Open-File Report
Series Number 74-333
Index ID ofr74333
Record Source USGS Publications Warehouse
USGS Organization