Description
Theodoro Knecht Of Instituto Geografia E Geologia
Commodities
PrimaryTungsten, Tin
TertiaryCopper, Lead, Bismuth, Fluorine-Fluorite, Molybdenum
Commodity typeB
Deposit
Deposit sizeY
Orebody formELIPTICAL SHAPE GRANITE STOCK
Ore controlWolframite Occurs In Almost All Quartz Veins In Area (N 66 E Set)And May Be Associated With Galena, Arsenopyrite, Pyrite And Chalcopyrite. Sparce Cassiterite. Numerous Tungstite Occurrences Reported. Wolframite Has Not Been Found As Disseminations Or Impregnations In Greisen. Mineralized Veins Up To One Meter In Width Are Reported.
Materials
Ore mineralsBismuth, Cassiterite, Fluorite, Molybdenite, Wolframite
GangueAxinite, Tourmaline
Other materialsTopaz
Geology
Host rockMetasedimentary Rock · Metasediments, Sao Roque Group (620-900 M.Y.)
Associated rockGreisen
StructureEliptical Shaped Granite Stock With N 60 E Trend The Same As Regional Strike Of Metasediments It Intrudes.
Tectonic settingBrazilian Shield
AlterationGreisenised Granite
Economic & production
Development statusPast Producer
First production1945
Discovery year1936
Identification
Deposit ID10068387
MRDS IDW001419
RegionSA
Data scoreB
Coordinates-23.43075, -47.58233
References
SALDANHA, REYNALDO AND FRANCO, RUI R.(1946)NOTA PRELIMINAR SOBRE A OCORRENCIA DE VOLFRAMITA E CASSITERITA EM SOROCABA: MINERACAO E MET. NO.57,P.107-109.KNECHT, THEODORO(1946)AS JAZIDAS DE WOLFRAMITA E CASSITERITA DA SERRA DE S. FRANCISCO, SAO PAULO: ANAIS DO SEGUNDO CONG.PANAMER. ENG. DE MINAS E GEOL. VOL.II, P. 113-139.BARBOSA ALCEU F. AND MACIEL, PEDRO(1951)MINERALIZACAO DE ESTANHO E TUNGSTENIO NA SERRA DE S. FRANCISCO, SAO PAULO: MINER. E METAL. NO. 92 P. 145-150.1943 RECON UNIV. OF SAO PAULO SEE REFERENCE F1SEE GENERAL REFERENCES1944 GEOLMAP INST. GEOL. E EOG. SEE REFERENCE F2