EXPLOITATION OF PYRITES DEPOSITS AT BRAND-ERBISDORF

Document Type: 
Collection: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP80-00810A006100140006-6
Release Decision: 
RIPPUB
Original Classification: 
S
Document Page Count: 
1
Document Creation Date: 
December 21, 2016
Document Release Date: 
June 16, 2008
Sequence Number: 
6
Case Number: 
Publication Date: 
March 10, 1955
Content Type: 
REPORT
File: 
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PDF icon CIA-RDP80-00810A006100140006-6.pdf63.75 KB
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Approved For Release 2008/06/16: CIA-RDP80-00810A006100140006-6 MWOMIRMWErallmaze- "It "If CENTRA?L INT,ELLIGENCf AGENCY This material contains information affecting the National Defense of the United States within the meaning of the Espionage Laws, Title 18, U.S.C. Secs. 793 and 794, the transmission or revelation of which in any manner to an unauthorized person is prohibited 25X1 SECRET COUNTRY East Germany SUBJECT Exploitation of Pyrites Deposits at Brand-Erbisdorf DATE OF INFO. PLACE ACQ.UIREq DATE ACQUIRED DATE DISTR. NO. OF PAGES REQUIREMENT REFERENCES 10 March 25'I nc: X1~ 1 1, The opening of the pyrites deposits at Brand-Erbisdorf near Freiberg has been delayed by a shortage of funds and technicians. It may therefore be .--assumed that mining activities have not yet been started in this area, 25X1 2, Ore samples obtained in the Brand-Erbisdorf are have been subjected to ore-dressing tests by Professor Kirchberg (fnu) of Freiberg. The experi- ments made showed that the flotation process was a success when completely fresh ore was utilized even after a short storage period, the mined ore 'ages so much that the result of the ore-dressing process is reduced by 50'-percent, Professor Kirchberg therefore holds that comprehensive pre- liminary tests for a suitable ore preparation process must still be made before ore-mining activities can be started in the Brand'Erbisdorf area, 3. The 'following are analyses of samples of raw ores Origin of Ore Samples Content in Percentage oft Schweinskopf area 3.1 3.55 6.15 15.2 0.2 "Vertrau auf Gott" mine 2.27 1.5 0,16 7.96 X I FBI AEC I O'RR E (Note: Washington distribution indicated by "X", Field distribution by INFORMATION REPORT INFORMATION REPORT Approved For Release 2008/06/16: CIA-RDP80-00810A006100140006-6 It is planned to produce lead., zinc,, and pyrite concentrates at Brand,