 | | Book | | Gemstonesof Peru . TO ' ..J.O[_)(ON '\J./ITI1 KY Be-51 R~GAF-P5 f JaroslavHyrsl Gemstonesof...Gemstonesof Peru GRflnil © 2012 Text by Jaroslav Hyr~I © 2012 Photos by Jaroslav Hycll (166), Fidel Salinas...LARCO in Lima, No. 100184. 3: Andean opa/ from Acarí, rough 9 cm and beads 2 cm in diameter. Col!. J...Coll. Z. Rosales. Photo J Hyrsl. 6 Introduction Peru is a country rich in minerals, with numerous very...Crowley et al. (1997) and most recently in the book "Peru, Paradise of Minerals" (Hyrsl et al., 2011 ). N |  | | Journal (issue) | | 27 No. 6 April 2001 Hte long sein Gemstoncs of Peru Gem quality clinohumite Colour of diamonds The...Longkin worksite, north of323 Pharkant mining district, northern Myanmar. This jadeite had a full green... Gemstones of Peru Dr Jaroslav Hyršl Kolin, Czech Republic ABSTRACT: Gem and ornamental stones from Peru are described...gemstones, Peru, pink opal Introduction A 323 lthough it has a long history of gemstone use, Peru is a country...rhodochrosite and then rare Figure 1: Blue opal from Acari, cut stones 8.09 and 2.50 ct. gems including more |  | | Journal (issue) | | Cd-bearing phosphate mineral from the Gold Quarry mine, Eureka County, Nevada . . . . . . . . . . . . ...crystal cluster, 7.3 cm, from near Bapu, Guangdong Province, China. Rob Lavinsky specimen, now in the Tom...recovered from the dumps of this small mine. Local collectors reworked the mine dumps many times in search of...about 325 meters southwest of the Bishop manganese mine. The locality was early on referred to as a “copper...spatially distinct from the nearby Bishop manganese mine. The dumps do not contain significant manganese |  | | Journal (article/letter/editorial) | | uranophane. The 3-cm specimen is from the Number 20 mine near Spruce Pine, Mitchell County, North Carolina...Figure 5. A 2-cm uraninite cube from the Cardiff mine, Wdberforce, Ontario, Canada;Canadian Museum of...photo. muth, and arsenic to zircon, tourmaline, fluorite, carbonates, and sulfides; it can decompose into...scientific purposes (Genth 1879). The Spruce Pine district of Mitchell County has been particularly productive...octahedral faces have been found at the Deer Park mine in and on coarse brown biotite and associated with |  | | Journal (article/letter/editorial) | | at the contact with the major Ediacaran F-rich Acari pluton. It indicates the absence of magmatic fluid...north of the Patos shear zone of the Borborema Province, northeastern Brazil (Fig. 1). The belt is composed...transpressive deformation was synchronous with the Acari pluton emplacement at 575 Ma (Archanjo et al., 2013)...at 515-505 Ma, forming the Borborema Pegmatite Province (Araújo et al., 2001; Baumgartner et D al.,...diameter bits. We locally sampled the Ediacaran Acari pluton for its mafic and felsic components and the |  | | Journal (article/letter/editorial) | | Anorogenic Magmatism in the Central Amazonian Province, Amazonian Craton: Geochronological, Petrological...September 2, 1992 Summary In the Central Amazonian Province, the anorogenic granites are older in the eastern...but rapakivi-like textures are described in the province as a whole. Mineralizations include large deposits...metaluminous granites of the North American anorogenic province. Petrographic, geochemical and Sr isotopic data...Central Amazonian Province 115 The large time span covered by ages in the province, the fact that granites |  | | Journal (issue) | | May–June, 2017 Contents The St. Andreasberg Mining District, Western Harz Mountains, Niedersachsen, Germany...working in the lode” (Simonin, 1869). The Mining District Western Harz Mountains Niedersachsen, Germany...minrecord@comcast.net The geographically tiny St. Andreasberg District of silver mines has an outsized reputation: it...silver minerals as well as wonderful calcite, fluorite, and pink apophyllite specimens: about 180 confirmed...century after mining ceased in the St. Andreasberg District, the locality remains secure in its fame among |  | | Journal (issue) | | located 31.5 km south of the city of Wroclaw in the province of Dolny Slask (Lower southwest Poland (Figure...nephrite jade production in the Jordanow Slaski district appears to have commenced in Neolithic times....of the regional geology of the [ordaruno Slaski district. J. Gemm., 2001, 27, 8, 461·470 western Europe...references to nephrite jade in the Jordanow Slaski district may be discerned in various 18th-century manuscripts...discoveries of nephrite jade in the Jordanow Slaski district. Acknowledgments I thank Antoni Stryjewski, |  | Souza Neto, João Adauto, Legrand, Jean Michel, Volfinger, Marcel, Pascal, Marie-Lola, Sonnet, Philippe (2008) W–Au skarns in the Neo-Proterozoic Seridó Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit. Mineralium Deposita, 43 (2) 185-205 doi:10.1007/s00126-007-0155-1 | Journal (article/letter/editorial) | | Neo-Proterozoic Seridó Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis...Mobile Belt (SMB) is located in the Borborema Province in northeastern Brazil and consists of a gneiss...of this type of skarn deposit in the Borborema Province, which potentially contains significant new, undiscovered...Tungsten and gold skarns . Bonfim . Borborema Province . Seridó Mobile Belt . Brazil Introduction Skarn...area of about 20,000 km2 known as the tungsten province of Seridó (Fig. 1). Most of the deposits have |  | | Journal (article/letter/editorial) | | Paleoproterozoic Volcanic and Granitic Rocks of Pitinga Province, Amazonian Craton, Northern Brazil a b H. T...Paleoproterozoic Volcanic and Granitic Rocks of Pitinga Province, Amazonian Craton, Northern Brazil, International...Paleoproterozoic Volcanic and Granitic Rocks of Pitinga Province, Amazonian Craton, Northern Brazil H. T. COSTI...66075-900 Belém, PA, Brazil Abstract Pitinga Province is one of the main tin provinces of the Amazonian...areas. Pitinga Province in the southern part of the Guyana shield and Rond6nia Province in the southwestern |  | Teixeira, Nilson P, Bettencourt, Jorge S, Moura, Candido A.V, Dall'Agnol, Roberto, Macambira, Edésio M.B (2002) Archean crustal sources for Paleoproterozoic tin-mineralized granites in the Carajás Province, SSE Pará, Brazil: Pb–Pb geochronology and Nd isotope geochemistry. Precambrian Research, 119 (1) 257-275 doi:10.1016/s0301-9268(02)00125-0 | Journal (article/letter/editorial) | | Paleoproterozoic tin-mineralized granites in the Carajás Province, SSE Pará, Brazil: Pb Pb geochronology and Nd...rocks of the Uatumã Group in the Carajás Mineral Province, southern Pará, Brazil. Pb /Pb zircon ages of.../southeastern part of the state of Pará, Carajás Mineral Province (Fig. 1), granitic massifs with associated greisen-type...sifs farther to the east in the Carajás Mineral Province (e.g., Carajás, Jamon, Musa, Redenção, Cigano)...Uatumã Group belong to the Central Amazonian Province (Fig. 1a). The Archean rocks of the study area |  | | Book | | Universidad Nacional de lngenieria, and Newmont Peru Limited Gerente de Exploraciones Av. Jose Galvez...Galvez Barrenechea 218, Urb. Corpac Lima-San Isidro, Peru Prof. Dr. ESTEBAN CEDILW Facultad de Minas, Metalurgia...place in September 1986 in Cusco, Peru, sponsored by Multiciencias (Peru) and UNESCO. During this seminar...Latorre, Director of the Multiciencias courses in Peru strongly supported the whole organization of the...Occurrences in the Paleozoic of the Yauli Dome, Central Peru H. W. Kobe . . . . . . . . . . . . . . . . . . |  | | Report (issue) | | setting of scheelite deposits ....... 7 Brejui Mine. .................... 10 Production, reserves... In pocket Figure 2. Location of scheelite district, Northeast Brazil. . . 8 TUNGSTEN RESOURCES...from just two operations--the Breju}. Mine and the Barra Verde Mine, both located on different parts of...estimates of the magnitude of reserves in the district; the apparent lack of reserves did not encourage...of 85 scheelite occurrence!? are known in the district, and new discoveries are being made each year |  | Wang, Ru Cheng, Yu, A-Peng, Chen, Jun, Xie, Lei, Lu, Jian-Jun, Zhu, Jin-Chu (2012) Cassiterite exsolution with ilmenite lamellae in magnetite from the Huashan metaluminous tin granite in southern China. Mineralogy and Petrology, 105 (1) 71-84 doi:10.1007/s00710-012-0194-x | Journal (article/letter/editorial) | | cassiterite, Sn-rich titanite (SnO2 up to 5.9 wt.%), fluorite and apatite. This association indicates that tin...Autonomous Region near its border with the Hunan Province (Fig. 1a, b). It is an elliptical dome-shaped...Huashan granite include magnetite, ilmenite, zircon, fluorite, titanite, 1.0 Siderophylite Annite a 0.8 ...Coexisting minerals include ilmenite, zircon, apatite, fluorite, and allanite. Based on electron-microprobe analyses...late-magmatic phase and is spatially associated with fluorite, Sn-bearing titanite, cassiterite, apatite, and |  | | Journal (article/letter/editorial) | | Regional geology and mayor ore deposits of Central Peru. Econ. Geol., 60, 8, 407~476, Lancaster 1965. RADELLI...broad sense that the expression "metallogenic province" is used in this paper. When all deposits of various... In this regard, the expression "metallogenie province" is used in a rather restricted sense. Even so...influence of political and geographic factors. Thus, Peru, Bolivia and Chile enjoy a long established mining...M~3LLER-KAHLE for Ecuador, and C. B. PETEltSEN for Peru. While acknowledging their cooperation I would also |  | | Book (edition) | | simple twins Bustamite lamellar Rhodonite yes Fluorite polysynthetic Baddeleyite lamellar and complex... Mineral Descriptions Molybdenite in Graphite; Bogala Mine, Sri Lanka 51 Copper, native Synonym(s): Cuivre...of cuprite (bluish grey); North Mine (North Broken Hill Mine; NBH Mine), Broken Hill, Yancowinna Co.,...(red internal reflections); Madenköy Mine, Çayeli, Rize Province, Black Sea Region, Turkey (sample: Halbach);...(greenish grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL B Same sample |  | | Journal (issue) | | emeralds • Euclase from Colombia • Color-change fluorite • Herderite from Pakistan • Jeremejevite from...from Myanmar and Sri Lanka • Pink opal from Peru • Prehnite from Australia and Mali • Unusual sapphire inclusions...emeralds were purchased or collected directly from the mine areas. The authors acquired the other samples at...localities. This 1.77 ct emerald from the Coscuez mine in Colombia was photographed together with the pyrite-bearing...from the Campos Verdes-Santa Terezinha mining district, Goias, Brazil. Journal of Gemmology, Vol. 26 |  | | Book | | ............... . 83 The Fresnillo Ag-Pb-Zn District, Zacatecas, Mexico ................................. . 2.2.2 The Casapalca Ag-Pb-Zn-Cu Deposit, Peru . 84 88 2.3 Epithermal Vein Deposits ................... . 91 2.3.1 The lulcani Deposit, Peru ............... . 2.3.2 Discussion and Suggestions for...Massive Sulfide Deposits of the BathurstNewcastle District, New Brunswick, Canada Discussion of Tectonic...Deposits ................ . 4.5.2 The Homestake Gold Mine, South Dakota .. 4.5.3 Pre-Metamorphic Stratiform |  | | Journal (issue) | | where found in large deposits, such as in the copper mine at Rio Tinto in south-western Spain, it is still...locations in Europe. Well-formed crystals also occur in Peru, Bolivia, Chile, Brazil, Japan and Mexico. 'Sand...from other examples are approximately twice the Peru have not been traced and it is possible diameter...combination of minerals has been exploited. Fine banded fluorite in various shades of green and violet with an...précieuses. Paris 26. Exhibition Catalogue, 1990. Inca Peru, 3000 ans d'histoire. Musees Royaux d'Art et d'Histoire |  | | Journal (issue) | | ............................................ 44 Peru...................................................the production is mixed with calcite. The spinel mine at Kuh-i-Lal is being operated by a skeleton crew...only 1.5 tons a month prior to the purchase of the mine in 2001. Although material must still be mined mostly...blasting can destroy gem materials, the current mine owners have been able to increase manpower, thus...company listed on the London Stock Exchange, to mine tin and sapphires in northeast Tasmania. Although |  | | Journal (issue) | | 90 Play-of-Color Opal from Wegel Tena, Wollo Province, Ethiopia Benjamin Rondeau, Emmanuel Fritsch,...appearance in diamond • Chrysocolla chalcedony from Peru • Recent finds of kunzite in Pala, California •...the proximity to San Diego’s historic pegmatite district, we will offer field trips to working gem mines...purchased the diamond in India, possibly at the Kollur mine, but its exact source is not known. Louis XIV had...exact source in India is unknown, though the Kollur mine has been mentioned (e.g., Balfour, 2009). The stone |  | | Journal (issue) | | Mountains. By Tim Miller 34 THE TALE OF A TOURIST MINE A new life for Colorado’s Last Chance. 34 By Steve...Cover This bournonite specimen from the Herodsfoot mine (Lanreath, Cornwall, England) is a really fine example...Benitoite Mine Update I’d like to clarify some information about the California State Gem mine and about...about present-day access to the mine that was published in Bob Jones’ article Benitoite (June 2017). People...the benitoite mine is a patented mining claim and is private property. Accessing the mine without written |  | | Journal (issue) | | ruby and moonstone) photographed at the home of a mine owner in Mogok, Myanmar. Two field reports on Mogok...48(1), 66–67. Blue Chrysocolla Chalcedony from Peru Gem Notes Microscopic examination revealed a polycrystalline...cut from material recently produced in southern Peru. Photo by Bilal Mahmood. UV-Vis-NIR Transmission...newly produced ‘gem silica’ from the Arequipa region of southern Peru. This area is known to produce fine-quality...obtained additional material on another trip to Peru in May 2013, bringing his total amount to 183 kg |  | | Book | | The auriferous claims 148 The gold mine of Morro Velho 153 The Mine of Passagem 155 The/old rush in P'ianc6...from the sulfide cla5s 238 The halide class 242 Fluorite 249 250 254 258 262 266 270 272 274 276 The...topaz 385 T he imperial topaz of Ouro Preto 393 The Mine of Capao do Lana 397 The imperial topaz of Antonio...of the pyralspite series 411 essartine 414 ~ he Mine of Pedra Bonita 416 Garnets of the ugrandite series...Lavra da Pederneira 526 District of Santa Rosa, Francisc6f olis 534 District o Golconda, Governador Valadares |  | | Book | | Keweenaw area of north Michigan; at the Copper Queen mine, Bisbee, Arizona and at Georgetown, New Mexico....areas including Kimberley, Pretoria (the Premier mine is in this area), and Jagersfontein in the Orange...Localities. Lead is found in Sweden at the Harstig mine, Pajsberg; from the gold placers of the Ural Mountains...several localities in Chile, and from the Mohawk mine, Keweenaw County, Michigan; also from Lake Superior...the Calabona mine, Alghero, Sardinia; other localities are Chile, Bolivia, Argentine and Peru. It is also |
|
