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- Deposit:: RESEARCH, U.S.G.S., VOL. 3, NO. 6, NOV.-DEC., 1975,
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- Deposit:: CATHCART, JAMES B., MINERALOGY, PETROLOGY AND CHEMISTRY OF
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- Deposit:: CATHCART, J., 1972, PHOSPHATE AND BAUXITE INVESTIGATIONS,
- Deposit:: COLOMBIA: USGS OPEN FILE RPT. IR CO-26, 62 PP.
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