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Page 6226, results 155626 - 155650

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The thoron-tartaric acid systems for the spectrophotometric determination of thorium
F. S. Grimaldi, Mary H. Fletcher
1955, Trace Elements Investigations 571
Thoron is popularly used for the spectrophotometric determination of thorium.  An undesirable feature of its use is the high sensitivity of the reagent toward zirconium. This study describes the use of tartaric acid as a masking reagent for zirconium. Three tartaric acid-thoron systems, developed for the determination of thorium, differ...
Some physical properties of naturally irradiated fluorite
Robert Berman
1955, Trace Elements Investigations 569
Five samples of purple fluorite found in association with radioactive, materials, and a synthetic colorless control sample were studied and compared.  Before and after heating, observations were made on specific gravity, index of refraction, unit-cell size, breadth of X-ray diffraction lines, and fluorescence.  The purple samples became colorless on heating...
Gravel and sand resources of the New England-New York region
Louis W. Currier
1955, Open-File Report 55-33
Deposits of sand and gravel are widespread in the New England-New York regions and constitute one of its principal mineral resources. Most of the pits are operated intermittently to supply local needs. Because of the great number and variety of known deposits, and because they have been worked at countless...
Pyrite deposits at Horseshoe Bay, Latouche Island, Alaska
Francis Adrien Stejer
1955, Open-File Report 55-175
Horseshoe Bay (see fig. 1) is in the southwest part of Prince William Sound at latitude 60°01'N and longitude 147°57'W. It is on the west side of Latouche Island about two miles southwest of the old mining camp of Latouche. Pyrite deposits crop out about one-half mile from the head...