copper ore
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copper ore — raw copper mined from the Earth … English contemporary dictionary
Yellow copper ore — Yellow Yel low (y[e^]l l[ o]), a. [Compar. {Yellower} (y[e^]l l[ o]*[ e]r); superl. {Yellowest}.] [OE. yelow, yelwe, [yogh]elow, [yogh]eoluw, from AS. geolu; akin to D. geel, OS. & OHG. gelo, G. gelb, Icel. gulr, Sw. gul, Dan. guul, L. helvus… … The Collaborative International Dictionary of English
gray copper ore — Tetrahedrite Tet ra*he drite, n. [So called because the crystals of the species are commonly tetrahedrons.] (Min.) A sulphide of antimony and copper, with small quantities of other metals. It is a very common ore of copper, and some varieties… … The Collaborative International Dictionary of English
purple copper ore — Bornite Bor nite, n. [Named after Von Born, a mineralogist.] (Min.) A valuable ore of copper, containing copper, iron, and sulphur; also called {purple copper ore} (or {erubescite}), in allusion to the colors shown upon the slightly tarnished… … The Collaborative International Dictionary of English
Purple copper ore — Purple Pur ple, a. 1. Exhibiting or possessing the color called purple, much esteemed for its richness and beauty; of a deep red, or red and blue color; as, a purple robe. [1913 Webster] 2. Imperial; regal; so called from the color having been an … The Collaborative International Dictionary of English
Copper mining in Arizona — Position of Arizona Location State Arizona … Wikipedia
Copper River and Northwestern Railway — U.S. National Register of Historic Places U.S. Historic District … Wikipedia
gold-copper ore — noun Any gold ore that has a high copper content and therefore needs special processing before the normal cyanide process … Wiktionary
gray copper ore — noun see gray copper … Useful english dictionary
ruby copper ore — I. noun see cuprite II. noun see ruby copper … Useful english dictionary
