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Later uses for copper VOCAL MUSIC ( SONGS ) : Twelve Poems of Emily Dickinson The first two letters of the Latin name constitute the ( 1950 ) ; The Tender Land : “ Laurie's Song " ( 1954 ) . chemical symbol Cu .
Table 1 : General Classification of the Ore Minerals of Copper formula copper ( percent ) * Cu 99.9 Native copper ore Native copper Sulfide ores Chalcocite Covellite Chalcopyrite Bornite Enargite Tetrahedrite Oxide ores Cuprite Tenorite ...
tive in exploiting low - grade copper - bearing material . In this procedure , dilute sulfuric acid is allowed to trickle through the ore , extracting the copper in the form of a solution of copper sulfate . The copper is recovered from ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review