| 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... © MUSEO LARCO in Lima, No. 100184. 3: Andean opa/ from Acarí, rough 9 cm and beads 2 cm in diameter...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 |
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Caucia, Franca, Marinoni, Luigi, Leone, Alberto, Ghisoli, Christian (2015) New physical, geochemical and gemological data of opals from Acari Mine (Arequipa Department, Peru) Neues Jahrbuch für Mineralogie - Abhandlungen Journal of Mineralogy and Geochemistry, 192 (1) 73-84 doi:10.1127/njma/2014/0272 |
Journal (article/letter/editorial) |
| gemological data of opals from Acari Mine (Arequipa Department, Peru) Franca Caucia, Luigi Marinoni,...compositional properties of some opals from Acari Mine, Peru, have been investigated through several methodologies...available in literature. XRPD analyses highlighted Acari Mine opals are CT types with variable contents of...distinct feature of the dark pink opals from Acari Mine is represented by the presence of β-carotenoid... 2008). XRD and Raman analyses showed that the Andean pink opals are mostly CT types and contain relevant |
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(2003) The Mineralogical Record Vol. 34 (3). The Mineralogical Record, Inc. |
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 |
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(2007) Opal - The Phenomenal Gemstone. Mineral Monograph 10. Lithographie, LLC |
Report (issue) |
| Contents 4 Map: Notable Opal Localities 50 BY BRUCE PAUL GABER 6 The Opal Enigma: Science, History...and Pins Afire: Play of Color in Opal BY MAX WEIBEL Sparkling Opal in Ancient Bones: Precious Relics...vibrant with opal pattern and color. In this extreme close-up of a Lightning Ridge black opal, the field...approximately 3 mm wide. Opal courtesy Jenni Brammall BY ALEX RITCHIE 52 An Opal Glossary of Terms BY...BY SI AND ANN FRAZIER BY PETER HUBER 64 Opal from Mexico: Unsurpassed Fire BY JURGEN SCHUTZ 18 Perfect |
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Galopim de Carvalho, Rui (2024) Gempedia. AIGS. |
Book |
| of a considerable portion of the industry, from mine to market, and hence a reference for terminology...produced in limited quantities in the abalone A See _opal_-A. a diamond is forever Famous advertising slogan...absorption coefficient of the defect. absorbent opal See hydrophane. absorption Electromagnetic radiation...the Panjshir valley, north of Kabul, and Laghman Province. Other gem materials reported from Afghanistan...(microcry talline quartz with moganite, sometimes with _opal_-CT) with a characteristic banded structure, usually |
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