How To Use Galena In A Sentence
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At the Fallowfield lead mine, near Hexham in Northumberland, it is associated with witherite; and at Bromley Hill, near Alston in Cumberland, it occurs in veins with galena.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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Thus, if galena and zinc blende in acid solutions be connected in the usual manner by a voltaic pair, sulphuretted hydrogen is evolved from the surface of the former, and a current generated which is sufficient to reduce gold, silver or copper from their solutions in coherent electro-plate films.
Getting Gold: a practical treatise for prospectors, miners and students
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The mineralization, consisting mainly of smithsonite (zinc carbonate), iron oxides and galena varied in true width from 2 to 5 metres.
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Closely allied to this subject is the investigation of the mode in which certain metals are reduced from their solutions by metallic sulphides, or, in common language, the influence which the presence of such substances as mundic and galena may exercise in effecting the deposit of pure metals, such as gold, in mineral lodes.
Getting Gold: a practical treatise for prospectors, miners and students
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The second Expedition failed to find gold, but brought back argentiferous galena in copper-stained quartz, and possibly in the ochraceous red veins seaming the Secondary gypsum; with silicates and carbonates of copper: select specimens of the latter yielding the enormous proportion of forty per cent.
The Land of Midian
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Galena is also found as larger isolated octahedral crystals within the coarse calcite cement in breccias in the upper parts of the core.
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Mineralization at the Haldane property is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite - tennantite in quart-siderite gangue.
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These crystals are associated with chalcopyrite, galena, quartz, calcite, epidote, and chlorite.
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There is a rough zonal arrangement of the ore minerals around the intrusive, gold and copper minerals (chiefly enargite and chalcopyrite) being more prominent near the intrusive, and argentiferous galena and zinc blende richer at greater distances.
The Economic Aspect of Geology
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The ore shoot is mainly in the Molas Formation and is surrounded by a silicified envelope that contains galena, sphalerite, chalcopyrite, tetrahedrite, and pyrite.
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Barite, sphalerite, and calcite are the most abundant vein minerals; pyrite, kaolinite, chalcopyrite, galena, and wurtzite are less common.
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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. gravities: thus, 4 divided by 7.5 gives 0.53 and 5 divided by 4 gives
A Text-book of Assaying: For the Use of Those Connected with Mines.
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Other minerals mentioned from the mine by Dunham include galena, sphalerite, pyrite, chalcedony, and minor marcasite and pyrrhotite.
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That sold in the bazars is not the real grey ore of antimony but a galena or sulphuret of lead.
The Book of The Thousand Nights And A Night
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The main ore minerals are galena, chalcopyrite, sphalerite, and tetrahedrite that are associated with quartz and barite gangue.
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There is a rough zonal arrangement of the ore minerals around the intrusive, gold and copper minerals (chiefly enargite and chalcopyrite) being more prominent near the intrusive, and argentiferous galena and zinc blende richer at greater distances.
The Economic Aspect of Geology
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Mineralization at the Haldane property is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart-siderite gangue.
StreetInsider.com News Articles
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The pods were composed of large masses of black sphalerite containing vugs of petzite on gold, galena, rhodochrosite, chalcopyrite, and pyrite.
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Mineralization at the Haldane property is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart-siderite gangue.
StreetInsider.com News Articles
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One quick stop was made at the abandoned New First of May mine, where on the ore pile we found galena, pyrite, arsenopyrite, and fluorite.
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But alert Galena coaches noticed Cole and Garcia never made it to their next bases, leaving the forceouts intact.
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Green kohl stretched to my eyebrows, and black galena acted as eyeliner.
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As already mentioned, lead occurs in British Columbia, mainly in the form of argentiferous galena or silver lead ores.
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I've been able to determine it came from one of three marines facies, the Galena, Decora, or Platville formations (Middle to Late Ordovician).
"Steampunk happens when goths discover brown."
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The main ore minerals are galena, chalcopyrite, sphalerite, and tetrahedrite that are associated with quartz and barite gangue.
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Some of the richer argentiferous galena pockets contained masses of mineral three or four inches in size.
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The unoxidized sections consist primarily of marmatite ore, which is composed primarily of pyrite, marmatite, galena, siderite, and minor chalcopyrite.
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Other important types of minerals include: the carbonates (e.g. calcite, CaCO3) the sulfides (e.g. galena, PbS) and the sulfates (e.g. anhydrite, CaSO4).
AP Environmental Science Chapter 10- Minerals
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Stalactite-like structures were common in the Black Sheep pocket, forming knobs and fingers of matrix covered with druzy quartz, fluorite, and galena crystals.
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Mineralization comprises sphalerite, galena and tetrahedrite in sulphide-rich veins ranging from a few centimeters to greater than one meter thick and heavily disseminated sphalerite, galena and tetrahedrite between the veins.
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The skarns also contain hornblende, calcite, pyroxene, tremolite, pyrrhotite, molybdenite, galena, chalcopyrite, arsenopyrite, garnet (probably andradite or grossular), and pyrite.
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Iron, copper, and arsenical pyrites, antimony, galena, molybdenite, zinc blende, and wolfram were treated in the above manner with similar results.
Getting Gold: a practical treatise for prospectors, miners and students
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The machinery is long gone and water mint, butterwort, dragonflies and frogs flourish in the fenny pools where grey crystals of galena were separated from the spoil, but the shells of the buildings remain.
Country diary: Westgate, Weardale
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Gold occurs in quartz veins with chalcopyrite, galena, pyrite, and sphalerite.
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Typically, the gold was associated only with secondary iron oxides, although several locations produced attractive specimens with malachite and chrysocolla and, in one location, minor galena and cerussite.
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Central to this paradise is a little girl, Magalena, with whom the childless pianist forms a fusional bond.
Karin Badt: Paris is No Paradise: Benoit Jacquot's "Villa Amalia" with Isabelle Huppert
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In the orebody galena occurred as large masses associated with pyrite, chalcopyrite, and tennantite.
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Vein minerals are barite, calcite, chalcopyrite, galena, pyrite, and sphalerite.
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The main ore minerals are galena, chalcopyrite, sphalerite, and tetrahedrite that are associated with quartz and barite gangue.
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a saddle of mutton; second course, a fowl they call galena at head, and a capon larger than some of our Irish turkeys, at foot; third course, four different sorts of ices, pine-apple, grape, raspberry, and a fourth; in each remove there were I think fourteen dishes.
Autobiography, Letters and Literary Remains of Mrs. Piozzi (Thrale) (2nd ed.) (2 vols.) Edited with notes and Introductory Account of her life and writings
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~ Lead is found in nature chiefly as the sulphide (PbS), called galena; to a much smaller extent it occurs as carbonate, sulphate, chromate, and in a few other forms.
An Elementary Study of Chemistry
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Quartzite, with traces of galena and molybdic sulphide. 3 and 4.
Scientific American, Volume XLIII., No. 25, December 18, 1880 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.
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Copper-silver ore, located in the cores of the chimneys, consists primarily of chalcopyrite, tetrahedrite, pyrite, and galena along with electrum and a number of minor silver minerals.
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Here the galena is massive, with 1-3 - mm-wide cleavage planes scattered across the quartz gangue surface of the specimen.
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It was the largest orebody found in the Rocky Point zone of the Sawatch Quartzite; ores were of the zinc manto type with marmatite, argentiferous galena, pyrite, and siderite.
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Clever though they were, they only knew lead when it occurred in the form known as galena, which looked like lead itself, and so they threw out a more valuable ore, cerusite, or lead carbonate, and the heaps of this valuable material were mined over a second time in comparatively recent times.
From John O'Groats to Land's End
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Galena may also overgrow clausthalite, and replace pyrite and chalcopyrite.
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Barite, sphalerite, and calcite are the most abundant vein minerals; pyrite, kaolinite, chalcopyrite, galena, and wurtzite are less common.
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Interesting thin plates of silver coating rhodonite and diopside in massive galena are reported from the mines at Garpenberg, Sweden.
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The tablets, he discovered, were made of Tunisian lead, suggesting that the Romans were mining a lead ore known as galena in the African colony.
On Archaeology’s Front Line in Atlanta
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Gold-bearing quartz and argentiferous galena [ore containing silver] have been discovered in several places.
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Vein minerals are barite, calcite, chalcopyrite, galena, pyrite, and sphalerite.
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On the dumps I found galena, pyrite, and rugs full of quartz, dolomite, and a few tiny, water-clear fluorites.
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Mineralization is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart-siderite gangue.
The Earth Times Online Newspaper
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Located on the ridge above Galena, three backcountry yurts are accessible by a short ski or snowshoe.
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Adjacent to the gray quartz with acanthite and gold is sugary white quartz with massive galena.
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The best galena crystals were those recovered from the gold/sphalerite ore, where bright, partially resorbed crystals to 4 mm occurred on larger sphalerite crystals and were associated with hoppered gold crystals.
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H884035 Manganiferous and limonitic 1.85 910 0.19 28.01 quartz-anglesite-galena vein
The Earth Times Online Newspaper
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Mineralization is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart-siderite gangue.
The Earth Times Online Newspaper
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Similarly, silver has been described replacing a variety of silver minerals, pyrite, and galena.
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National surveys show many young people believe cohabitation is a good way to test a relationship," says co-researcher Galena Rhoades, also of the University of Denver.
Couples study debunks 'trial marriage' notion of cohabiting
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Hood: of the maxilla is the galena; q.v.: in Tingitidae the elevated portion of the prothorax, often covering the head.
Explanation of Terms Used in Entomology
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Interesting thin plates of silver coating rhodonite and diopside in massive galena are reported from the mines at Garpenberg, Sweden.
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He then proceeded to explore the Oshawanoe Mountains, near Cave-in-Rock, with their deposits of the fluate of lime, galena, and other mineral treasures.
Memoirs of 30 Years with the Indian Tribes on the American Frontiers
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This karsting provides highly permeable rocks in which the sulphide minerals sphalerite and galena represent the valuable mineralization.
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Gold occurs in quartz veins with chalcopyrite, galena, pyrite, and sphalerite.
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Silver is found in the ores of other metals, such as fahlerz, which sometimes contains from two to ten per cent. of the metal, and galena, which is an important source of it; in fact, galena is never found entirely free from silver.
A Text-book of Assaying: For the Use of Those Connected with Mines.
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The sulphur of the galena falls to the bottom of the bath, and may be separated from the gangue by solution in carbon disulphide.
Scientific American Supplement, No. 433, April 19, 1884
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The total production to 1926 was about 5,000,000 tonnes of argentiferous galena from around 300 mines and prospects.
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He reported that most highly argentiferous galena required silver to have been coupled with bismuth or antimony to allow a substitution for lead within the lattice under high-temperature conditions.
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One gram of copper pyrites, blende, fahlerz, or mispickel, yields 7 or 8 grams of lead, whilst 1 gram of antimonite will give 6, and 1 gram of galena only
A Text-book of Assaying: For the Use of Those Connected with Mines.
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Here argentiferous galena was obtained, and the mine was worked for its silver.
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Sphalerite stalactites to 15 cm in diameter and coated with crystallized marcasite and galena are reported from the Marsden prospect near Galena, Illinois.
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A short drift and crosscut were driven off the back of the cavity in search of ore, but only low-grade mineralization consisting of chalcopyrite, galena, and sphalerite in a siliceous gangue was encountered.
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Mineralization consists of zinc carbonate (smithsonite), silver-bearing galena (lead sulphide) and lesser malachite and barite.
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In scorification the proportion of lead required for scorifying 1 gram of ore is in average cases from 10 to 15 grams, sinking in the case of galena to 2 grams, and rising with earthy and refractory substances to from 30 to 40 grams.
A Text-book of Assaying: For the Use of Those Connected with Mines.
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Other minerals mentioned from the mine by Dunham include galena, sphalerite, pyrite, chalcedony, and minor marcasite and pyrrhotite.
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The fowls are flamingos, great curlews, and guinea-hens, which the natives of those islands call galena pintata, or the painted hen; but in Jamaica, where I have seen also those birds in the dry savannahs and woods (for they love to run about in such places) they are called guinea-hens.
A Voyage to New Holland
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Lead and zinc: zinc blende, chalcopyrite, galena, lead, zinc and copper concentrates
New York at the Louisiana Purchase Exposition, St. Louis 1904 Report of the New York State Commission
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Effects of sodium sulfide on collectorless flotation of galena have been investigated.
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There's Jeff Bezos on the right and Paul Saville on the left looking for galena, which is the lead-silver thing.
Stewart Brand on the Long Now
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Microcrystals of pyrrhotite, goethite, pyrite, galena, and calcite are found on the dumps.
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‘They sat down and cupelled about two-thirds of their galena before they realized that they were wasting their time,’ he said.
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Silver is found in the ores of other metals, such as fahlerz, which sometimes contains from two to ten per cent. of the metal, and galena, which is an important source of it; in fact, galena is never found entirely free from silver.
A Text-book of Assaying: For the Use of Those Connected with Mines.
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Mineralization is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart - siderite gangue.
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With time and cooling, high-temperature galena cleanses itself of some of the bismuth and silver through the process known as exsolution.
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At Monteponi the crystals encrust cavities in glistening granular galena; and from Leadhills, in Scotland, pseudomorphs of anglesite after galena are known.
Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1
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He reported finding wulfenite, cerussite, anglesite, plattnerite, and massicot as alteration products of galena in three pegmatites at Saint Peters Dome.
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Mineralization is controlled by northerly trending structures, and consists of galena, sphalerite and tetrahedrite-tennantite in quart - siderite gangue.
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One gram of copper pyrites, blende, fahlerz, or mispickel, yields 7 or 8 grams of lead, whilst 1 gram of antimonite will give 6, and 1 gram of galena only
A Text-book of Assaying: For the Use of Those Connected with Mines.
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The machinery is long gone and water mint, butterwort, dragonflies and frogs flourish in the fenny pools where grey crystals of galena were separated from the spoil, but the shells of the buildings remain.
Country diary: Westgate, Weardale
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Many choice specimens of sphalerite, calcite, galena, and dolomite could be collected from pillars and small areas not previously mined.
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We have also noted clumps of small marcasite crystals as a late-stage association with galena and drusy quartz from the Eagle mine.
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Pseudomorphs of sphalerite after galena, tetrahedrite, barite, and calcite have been found; hemimorphite and smithsonite pseudomorphs after sphalerite are reported.
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The primary ore minerals were not investigated, although galena and pyrite were found as relict masses on several occasions.
