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Search for specimens: View all pyromorphite specimens from Minas del Horcajo, Spain
Minas del Horcajo is a mining hamlet and historic lead-silver district in the municipality of Almodóvar del Campo, Ciudad Real, Castilla-La Mancha. The workings sit in the Sierra MadronaâQuintana natural unit, near the boundary with Brazatortas and not far from the province of Córdoba. The landscape is mountainous rather than open meseta country, and the mining settlement developed around a group of veins and shafts rather than a single isolated pit.
The ore deposit belongs to the Pb-Zn-Ag-Sb-Cu vein systems of the Valle de Alcudia. The district is set within the southern part of the Central Iberian Zone and is structurally tied to Hercynian deformation, later brittle faulting, and late-Hercynian intrusive activity associated with the Los Pedroches batholith. In the El Horcajo area, the mineralization is linked to post-Hercynian extensional fractures, especially structures described as La Basilisa and La Rivera. The main hydrothermal stage produced vein deposits dominated by galena and ankerite, with sphalerite, chalcopyrite, silver-bearing sulfosalts, and other accessory sulfides and sulfosalts. Subsequent weathering and groundwater circulation altered these primary minerals and produced the pyromorphite, phosphohedyphane, anglesite, cerussite, linarite, plumbogummite, kintoreite, and other secondary minerals that make the locality important to collectors.
The principal modern mining story begins in the 19th century. Juan Inza made the first mining registrations in 1858, and small production began the following year at the MarÃa del Pilar mine. In 1865 the operations passed to Ceferino Avecilla, who gave the camp a major impulse; by 1870 the mines were in the hands of Sociedad La MinerÃa Española, with Avecilla still involved as manager. By 1873 the principal veins were being worked: San Alberto, also known as Nuevo Perú, with more than 2 km of strike length and later workings down to 555 m; Ana MarÃa, with about 800 m of strike; Paralelo; and San Germán, a somewhat separate working to the northwest.
The two main vein systems were developed by a line of shafts including Malacate, Argentino, San Miguel, San Juan, and San Ceferino. Malacate was the deepest, ultimately reaching 603 m. The mining camp became a substantial company town, with schools, a hospital, a church, and housing for minersâ families. In 1903, during the period when the mines belonged to the Banco de ParÃs, production reached 13,000 tonnes of ore and more than 1,200 workers were employed. Ore moved to the Veredas station with the help of about 290 pack animals. A mining railway to Conquista was opened in 1907, but the main productive story was nearly over: the mines closed definitively in 1911 after reaching the 603 m depth level.åŸã«å°åºã埩掻ããããŸãã¯èª¿æ»ãã詊ã¿ããããŸããã1951幎ãã1955幎ã«ãããŠSMMPã¯äž»ã«æ¢é±ãšããŠäœæ¥ãåéãã1959幎ã«ã¯éçºãSociedad Minera Beticomanchegaã«è³è²žãããŸãããã1963幎ã«ãã¹ãŠã®äœæ¥ã¯åæ¢ããŸãããåŸã®ãé±å±±ä»¥å€ã®åºæ¥äºãé±ç©åéå®¶ãé±ç©åŠè ã«ãšã£ãŠéèŠãšãªããŸãããæ§éèœè¿ãã®ãããªãŒãâã»ããªã¢é«éééãã³ãã«ãšé«æ¶æ©ã®å»ºèšã«ãããæ§ããã³ããåãããæ°ããªå ç©ç©ãçãããªã³é žå¡©ãå«ãç©è³ªãé²åºãããšã«ã»ãªã«ã«ãã®çŸä»£ã®ãã€ã¯ãé±ç©èšé²ã远å ããŸããã
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Sáinz de Baranda, B., Palero, F.J., and GarcÃa, G. (2004). âEl Horcajo, las piromorfitas más famosas del mundo.â Bocamina, 13, 32â68. ã¯ã©ã·ãã¯ãªHorÄajoããã¢ã«ãã¡ã€ãããã³é¢é£çš®ã«é¢ããçŸä»£ã®éèŠãªã³ã¬ã¯ã¿ãŒ-é±ç©åŠè«æã
Sáinz de Baranda, B. (2022). âActualización Mineralógica de las Minas de el Horcajo.â PDF hosted by Foro de MineralogÃa Formativa. é±å±±ã®é±ç©åŠã»æŽå²ã»å°è³ªã»åæäœæ¥ã»ããã¢ã«ãã¡ã€ãâãã¹ãããã£ãã¡ã³åé¡ã®è©³èª¬çŸä»£ã¬ãã¥ãŒã
Caballero, A., Doval, M., and MartÃn Pozas, J.M. (1973). âEstudio mineralógico de la piromorfita de Horcajo (Ciudad Real).â BoletÃn Geológico y Minero, LXXXIV, 504â515. Horcajoããã¢ã«ãã¡ã€ãã®åæåæç ç©¶ãåŸã®é±ç©åŠçã¬ãã¥ãŒã§åŒçšã
Pardillo, F., and Gil, F. (1916). âPiromorfita de Horcajo (Ciudad Real).â Memorias de la Real Sociedad Española de Historia Natural, 10(6), 331â340, 3 plates. Horcajoããã¢ã«ãã¡ã€ãã®å€å žççµæ¶åŠç ç©¶ãæ°å€ãã®çµæ¶åœ¢ãš twinning é¢ä¿ã®èšè¿°ã§ç¥ãããã
Avecilla, C. (1878). Minas del Horcajo Pertenecientes a la CompañÃa Comandataria denominada La MinerÃa Española. Madrid, 18 pp. çŸä»£ã®HorÄajoç ç©¶ã§åŒçšãããæŽå²çäŒæ¥æä»£ã®å ±åæžã
Museu de CiÚncies Naturals de Barcelona, pyromorphite specimen MGB 4357. Vidalã³ã¬ã¯ã·ã§ã³ã®æ³šç®ãã¹ãHorÄajoæšæ¬ããµã€ãº9.5 à 6.5 à 4.5 cmãåç©é€šã¯å°è³ªå®ç³ã®1ã€ãšããŠèª¬æã
Museo Histórico-Minero Don Felipe de Borbón y Grecia specimen, photograph by Miguel Calvo. ãããªãŒãã®é±å±±åŠæ ¡åç©é€šã«æå±ããHorÄajoããã¢ã«ãã¡ã€ãæšæ¬ã®Wikimedia Commonsç»åã
Museos de Tenerife, âTras el cristal: Piromorfita.â ãããªãã§çŸè¡é€šæèµã®èªç¶ç§åŠéšéã«å±ç€ºãããEl Horcajoããã¢ã«ãã¡ã€ãã«é¢ãããã¥ãŒãžã¢ã ããŒãã
CristaMine / UNED, pyromorphite specimen ref. 1059. La Salleã»Hermano Leónãããã«ãã®èªç¶ç§åŠåç©é€šæèµã®El Horcajoããã¢ã«ãã¡ã€ãïŒ7 à 5 cmïŒãèšé²ããæè²çšé±ç©ããŒãžã## ãããªãèªæžãšå€éšãªã³ã¯
Mindat ããŒã«ãªãã£ããŒãžïŒMinas del Horcajo â äžå€®ããŒã«ãªãã£ããŒã¿ããŒã¹ããŒãžãå šé±ç©ãªã¹ãããµãããŒã«ãªãã£ãåç §ãåçèšé²ã«æçšã
Mindat çºçããŒãžïŒMinas del Horcajo ã®ããã¢ã«ãã¡ã€ã â Horcajo ããã¢ã«ãã¡ã€ãã®çŠç¹ãšãªãçºçããŒãžãé¢é£é±ç©ãšåçããŒã¿ã®é¢é£æ å ±ããã
Almodóvar del Campo çºå ¬åŒããŒãžïŒMinas del Horcajo â é±å±±éèœã®å°å èªæ²»äœæ å ±ãš Sierra MadronaâQuintana 颚æ¯ã«ãããèšå®ã
Museo Nacional de Ciencias NaturalesïŒãããã¢ã«ãã£ã¿ããã«ã«ãã®ç·ã®èã â Horcajo ã®ããã¢ã«ãã¡ã€ãã®èŠèŠçãç·ã®èãå°è±¡ãæããçãçŸè¡é€šèšäºã
MTI ããã°ïŒãMinas de El Horcajo ã®æç®èæ¯ã®æ°ããåçã â ã³ã¬ã¯ã¿ãŒåãã®äž»èŠã¹ãã€ã³åèµåãšçŸè¡é€šã®åçæèŠãåç §ããåçã¡ã¢ã
MTI ããã°ïŒãããã¢ã«ãã£ãŒã«ã¿ïŒIïŒãMinas del Horcajoã â ã¢ã©ãã®èªç¶å²åç©é€šæèµæšæ¬ã®åçèšè«ãè²ã®äžåäžããå æ²¢ã空æŽãå¹³è¡ãã·ãªãã¯ããªãºã ã瀺ãã
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Wikimedia CommonsïŒEl Horcajo ã®ããã¢ã«ãã£ã¿ â Don Felipe de Borbón y Grecia åç©é€šã«æèµããã Horcajoæšæ¬ã®èªç±ã©ã€ã»ã³ã¹ç»åã
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