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Books Books 1 - 2 of 2 on ... specks grouped together into pockets. The hard ore consists of psilomelane in....
" ... specks grouped together into pockets. The hard ore consists of psilomelane in two forms — kidneys and irregular masses. The kidneys are very irregular in shape, varying up to 4 inches in diameter, though generally small, and are found scattered... "
Bulletin - United States Geological Survey - Page 76
by Geological Survey (U.S.) - 1910
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Manganese Deposits of the United States with Sections on Foreign Deposits ...

Edmund Cecil Harder - Manganese - 1910 - 298 pages
...generally small, and are found scattered through the different clays and also through the soft-ore pockets. The irregular masses generally have botryoidal...mining profitable. It is reported as having an average percentage of 46.73 of manganese and 0.212 of phosphorus. The deposits6 occur at the contact of the...
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The Resources of Tennessee, Volumes 5-6

Geology - 1916
...Hooper, of Newport, Tenn. The underlying rocks of this and of the Spence property are of Cambrian age. "Other deposits in this district are reported from Neddy Mountain and Long Creek, $ miles and 5'/2 miles respectively, east of Bridgeport ; from Del Rio, Wolf Creek, and Cosby, all...
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