| most cherished products of the Ojuela mine at Mapimí, Durango, Mexico: of the several styles of “old”...“old” fluorite specimens from the great mine, the best known shows deep purple, transparent, cubo-dodecahedral...beginning around 2008, fresh ore exploitation in deep mine levels has yielded beautiful groups of gemmy, lustrous...shows 13 excellent fluorite miniatures from the Ojuela mine, nine “new” and 4 “old,” the “old” showing typical...specimens has sharp galena crystals with the fluorite: a rarity for Ojuela, where massive galena at depth is |
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Jones, Robert W. (1970) The Contact Zone. Rocks & Minerals, 45 (9) 538-540 doi:10.1080/00357529.1970.11763911 |
Journal (article/letter/editorial) |
| Circle Dr., Scottsdale, Ariz. 85251 Mapimi, Durango, Mexico strikes joy in the hearts of most mineral collectors...as a silver producer for the Spanish when they held Mexico and the rest of the New World. Silver was discovered...entire mining district, the Ojuela, whose major mine is the Mina Ojuela. Specimens from the district...thought of as being from Mina .Ojuela. This is essentially true since the mine possesses tunnels totalling...the American #2. Other entrances are American #1, Ojuela, and Norte, these latter names meaning Little Eye |
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Presmyk, Les, Megaw, Peter K. M. (2019) Wulfenite from Mexico. Rocks & Minerals, 94 (1) 34-47 doi:10.1080/00357529.2019.1519672 |
Journal (article/letter/editorial) |
| mimetite, 7.2 cm across, San Francisco mine, Cucurpe, Sonora, Mexico. Classic combination from the “Red Mimetite...Scovil photo. Wulfenite from Mexico Figure 2. Wulfenite localities in Mexico; prepared by William Besse...Megaw is an exploration geologist who has worked in Mexico for forty years, which has led him to specialize...localities in the states of Chihuahua, Sonora, and Durango, Mexico, combined with the five top wulfenite produc-...Chihuahua State; the Ojuela mine near Mapimi in Durango State; and the San Francisco mine in northern Sonora |
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Bideaux, Richard A. (1990) Featured Mineral at the 1990 Tucson Show:The Desert Mineral WULFENITE. Rocks & Minerals, 65 (1) 11-30 doi:10.1080/00357529.1990.9926437 |
Journal (article/letter/editorial) |
| specimens, not only to the mine, but also often to the particular place in the mine and even to the period...88 gm/cc ‘when pure. This is almost as dense as galena, but only rarely is wulfenite in such large compact...countries. The primary ore mineralogy is simple; galena [PbS] and sphalerite [ZnS] were deposited at about...well as hemimorphite [Zn,Si,O,(OH),-H,O] . The galena was altered to cerussite [PbCO,] and anglesite...lead in its composition comes from the abundant galena destroyed by oxidizing ground water; the molybdenum |
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Desautels, Paul E. (1974) Rocks & Minerals. Hamlyn Publishing Group Ltd, London. |
Book |
| 38 98 Marcasite 46 Proustite Azurite 50 Galena Quartz 58 102 106 Copper 54 90 94 Pyrite...are known to be in a mine, the hazards they face even before emerging from the mine are horrendous. More...are found free and uncombined in nature. Gold, silver, and copper occur in the most attractive specimens...also from California, from the Red Ledge Mine. 12 For silver it seems impossible to surpass the sculptured...produce specimens that nearly rival the best. For silver, the mines of Saxony, Germany, and the Keweenaw |
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Spurr, Josiah Edward (1923) The Ore Magmas Vol. 2. MacGraw-Hill , New York. |
Book (volume) |
| North America Principal silver camps of the Western United States The Great Silver Channel in South America...ore-deposit belts of Colorado and New Mexico The Great Silver Channel 79. Tertiary ore deposits of...Concentration of galena by descending waters Guanajuato, Mexico; Carmen mine. Upper pressure limit Waihi mine. New...dome Magmatic differentiation of molybdenite; Hxmt mine, Renfrew County, Ontario Sudbury, Ontario. Intrusive... 95. 96. Haggerty mine, Encampment district, Wyoming Bonanza, Zacatecas, Mexico. Surface geology 98 |
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Moore, T.P. (2016) Moore's Compendium of Mineral Discoveries 1960 - 2015 Vol. 2. Mineralogical Record Inc. |
Book |
| Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals in the...(especially stilbite), whereas in the typical ilmenite-bearing paragenesis orthoclase is less common, zeolites...region of east-central Canton Uri that clefts bearing the ilmenite paragenesis are widely exposed (Weibel |
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Cronshaw, H. B. (1921) Silver Ores. Monographs on Mineral Resources with Special Reference to the British Empire. Imperial Institute |
Report (issue) |
| N T I F I C A N D T E C H N I C A L S T A F F SILVER ORES BY Ha B. CRONSHAW, , P h , D . , A.R.S.M....B . CRONSHAW, B.A., PH.D., A.R.S. M. 5 s . net SILVER ORES. B y H . B. CRONSHAW, B.A., PH.D., A.R.S.M...N T I F I C A N D T E C H N I C A L S T A F F SILVER ORES BY H . B. CRONSHAW, B.A., Ph.D., A.R.S.M....PAGE SILVER ORES: THEIR OCCURRENCE, CHARACTERS AND USES CHAPTER I I SOURCES OF SUPPLY OF SILVER ORES... . 52 • • CHAPTER I I I SOURCES OF SUPPLY OF SILVER ORES (b) FOREIGN COUNTRIES : Europe : A u s t r |
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Spurr, Josiah Edward (1923) The Ore Magmas Vol. 1. MacGraw-Hill , New York. |
Book (volume) |
| Alaskite-quartz intrusive lenses. Silver Nevada Peak, Nevada 3. 6. Drinkwater mine, Silver Peak. Vertical cross-section...cross-section Forking of quartz lens Silver Peak. Lenses of quartz and alaskite Silver Peak. Magnified thin sections... 1. Zone 4. 5. of auriferous quartz lenses, Silver Peak, 91 Hackett-Woosey vein. Herb Lake, Manitoba...Manitoba 11. Great Gulch mine. Silver Peak, Nevada 12. Great Gulch mine, Silver Peak, Nevada Surface plan...13. Mandy mine, Manitoba. Vertical cross-section 14-A. Mandy mine, Manitoba. 14-B. Mandy mine, Manitoba |
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(2016) May - June 2016. The Mineralogical Record Vol. 47 (3) The Mineralogical Record, Inc. |
Journal (issue) |
| EUCLASE with Albite, 11.2 cm, from the La Marina mine, Muzo District, Boyaca Department, Colombia. See...DENVER MART EXPO HALL ROOMJ53 BARITE 20.3 CM XIEFANG MINE , GANZHOU PREFECTURE , JIANGXI PROVINCE , CHINA...IHI1IJNGA1llY. Figure 1. "Internal view of the silver mines near Schemnitz, in Hungary" published by... wire silver, acanthite, pyrargyrite, stephanite, barite, calcite, aragonite, diaspore, galena, sphalerite...district name of Banska Stiavnica will be used, bearing in mind that these two names refer to the same |
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(1984) January - February 1984. The Mineralogical Record Vol. 15 (1) The Mineralogical Record, Inc. |
Journal (issue) |
| .... 5 by C. S. Stolburg Minerals of the Pereta mine, Tuscany, Italy ..................................and M. Tazzini Alteration minerals of the Cetine mine, Tuscany, It a ly ................................ Sabelli and G. Brizzi Siegenite from the Buick mine, Bixby, Missouri .................................years he was Resident Geologist at the Copper Queen mine until Phelps Dodge Cor poration closed all the...transferred to Ajo as Mine Planning Engineer and later promoted to General Mine Foreman. He left Ajo in |
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Beck, Richard, Weed, Walter Harvey (1905) The Nature of Ore Deposits Vol. 2. The Engineering and Mining Journal, New York and London. |
Book (volume) |
| dip southwest at 41^, together with the copper-bearing layer of this formation, show a displacement along...district, carrying only 1.4% of copper, and no silver, but, where it is traversed by the cobalt veins...roselite, native silver, argentite, proustite, pyrargyrite, polybasite, and other rich silver uranium pitchblende... occur in the veins. Copper ores, zinc-blende, galena, etc., occasionally occur. the gangues mentioned...niccolite predominate and carry 6 to or even 20% of silver. In this gangue uraninite (pitchblende) also occurs |
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