If the two brigs covered Killick's land-battery with gunfire, then the Marines could go in with powder barrels, pitch- blende, and Chinese lights to torch the Thuella down to charred ribs. Sphalerite or blende (zinc sulfide), the original zinc ore, smithsonite, hydrozincite, willemite. They were standing at the base of the saddle ridge of pitch- blende, looking down the fold limb. gravities: thus, 4 divided by 7.5 gives 0.53 and 5 divided by 4 givesĪ Text-book of Assaying: For the Use of Those Connected with Mines. It is necessary in this case to calculate the volumes of the galena and of the blende, which is done by dividing the weights by the sp. noun an ore that is the chief source of zinc consists largely of zinc sulfide in crystalline form.noun mineralogy A naturally-occurring sulphide of zinc.įrom WordNet 3.0 Copyright 2006 by Princeton University.noun A general term for some minerals, chiefly metallic sulphides which have a somewhat brilliant but nonmetallic luster.įrom Wiktionary, Creative Commons Attribution/Share-Alike License.Its color is usually yellow, brown, or black, and its luster resinous. It is a zinc sulphide, but often contains some iron. noun A mineral, called also sphalerite, and by miners mock lead, false galena, and black-jack.noun An ore of zinc a native sulphid of zinc, but commonly containing more or less iron, also a little cadmium, and sometimes rarer elements (gallium, indium).įrom the GNU version of the Collaborative International Dictionary of English.noun Any of various shiny minerals composed chiefly of metallic sulfides.From The American Heritage® Dictionary of the English Language, 5th Edition.
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