Journal articles on the topic 'Precious opal'
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Bellacera, Carole. "The Precious Opal." Appalachian Heritage 18, no. 4 (1990): 56–58. http://dx.doi.org/10.1353/aph.1990.0029.
Full textBootkul, Duangkhae, and Sawet Intarasiri. "Development of Glass-Ceramics from Soda Lime Silica Glass Waste by Direct Sintering Method for Opal Imitation." Key Engineering Materials 751 (August 2017): 397–402. http://dx.doi.org/10.4028/www.scientific.net/kem.751.397.
Full textEjigu, Assamen Ayalew, Desalegn Gezahegn Ketemu, Sisay Awoke Endalew, and Wudu Yimer Assen. "Characterization of Natural Precious Opal Using Modern Spectroscopic Techniques in Ethiopia: The Case from Delanta, South Wollo." Journal of Spectroscopy 2022 (August 24, 2022): 1–8. http://dx.doi.org/10.1155/2022/3194151.
Full textGuo, Ying, Zhi Xuan Dai, and Hong Juan Sun. "The Correlation between Play-of-Color Effect and SiO2 Cavities Size of Australian Blue Opal." Key Engineering Materials 492 (September 2011): 366–69. http://dx.doi.org/10.4028/www.scientific.net/kem.492.366.
Full textStewart, A. M., Lewis T. Chadderton, and Brian R. Senior. "Self-assembly in the growth of precious opal." Journal of Crystal Growth 312, no. 3 (January 2010): 391–96. http://dx.doi.org/10.1016/j.jcrysgro.2009.09.042.
Full textPotapov, V. V., and D. V. Kamashev. "Synthesis of precious opal in a hydrothermal solution." Glass Physics and Chemistry 32, no. 1 (January 2006): 89–98. http://dx.doi.org/10.1134/s1087659606010123.
Full textPalgutová, Silvia, and Ľubomír Štrba. "Geoheritage of the Precious Opal Bearing Zone in Libanka Mining District (Slovakia) and Its Geotourism and Geoeducation Potential." Land 11, no. 12 (December 14, 2022): 2293. http://dx.doi.org/10.3390/land11122293.
Full textDickson, B. L. "Which water formed Australian sediment-hosted precious and potch opal?" Australian Journal of Earth Sciences 66, no. 5 (March 24, 2019): 645–55. http://dx.doi.org/10.1080/08120099.2019.1572032.
Full textChauviré, Boris, Benjamin Rondeau, Francesco Mazzero, and Dereje Ayalew. "The Precious Opal Deposit At Wegel Tena, Ethiopia: FormationViaSuccessive Pedogenesis Events." Canadian Mineralogist 55, no. 4 (July 2017): 701–23. http://dx.doi.org/10.3749/canmin.1700010.
Full textPewkliang, B., A. Pring, and J. Brugger. "THE FORMATION OF PRECIOUS OPAL: CLUES FROM THE OPALIZATION OF BONE." Canadian Mineralogist 46, no. 1 (February 1, 2008): 139–49. http://dx.doi.org/10.3749/canmin.46.1.139.
Full textTaksavasu, Tadsuda, Thomas Monecke, and T. Reynolds. "Textural Characteristics of Noncrystalline Silica in Sinters and Quartz Veins: Implications for the Formation of Bonanza Veins in Low-Sulfidation Epithermal Deposits." Minerals 8, no. 8 (August 2, 2018): 331. http://dx.doi.org/10.3390/min8080331.
Full textTemerov, Filipp, Bright Ankudze, and Jarkko J. Saarinen. "TiO2 inverse opal structures with facile decoration of precious metal nanoparticles for enhanced photocatalytic activity." Materials Chemistry and Physics 242 (February 2020): 122471. http://dx.doi.org/10.1016/j.matchemphys.2019.122471.
Full textRey, P. F. "Remarks on the age of precious opal in central Australia: reply to comment by Bruce Dickson." Australian Journal of Earth Sciences 60, no. 8 (December 2013): 835–38. http://dx.doi.org/10.1080/08120099.2013.870229.
Full textKaczan, Wojciech, Jan Kudełko, and Herbert Wirth. "Szklary nickel deposit — a review and introduction to attempts in hydrometallurgical processing." Mineral Economics 34, no. 2 (May 12, 2021): 315–22. http://dx.doi.org/10.1007/s13563-021-00269-0.
Full textSmallwood, A., P. S. Thomas, A. S. Ray, and P. Šimon. "Application of a Fickian model of diffusion to the dehydration of graded specimens of a precious Australian sedimentary opal derived from Coober Pedy." Journal of Thermal Analysis and Calorimetry 97, no. 2 (June 10, 2009): 685–88. http://dx.doi.org/10.1007/s10973-009-0076-6.
Full textHoskins, Andrew, Shekerah Primus, Mary Yazdani, Kimberley Gutierrez, Benjamin Foret, Fabien Bernard, and Rémi Dangla. "Abstract 2932: The 6-color naica® system: a digital PCR platform and workflow for high multiplex genetic detection and analysis." Cancer Research 82, no. 12_Supplement (June 15, 2022): 2932. http://dx.doi.org/10.1158/1538-7445.am2022-2932.
Full textVysotskiy, S. V., A. V. Ignatiev, A. G. Khlestunova, T. A. Velivetskaya, and A. S. Okrugin. "Peculiarities of the oxygen isotope ratio in precious opals." Russian Journal of Pacific Geology 7, no. 6 (November 2013): 427–30. http://dx.doi.org/10.1134/s1819714013060079.
Full textMcOrist, G. D., and A. Smallwood. "Trace elements in precious and common opals using neutron activation analysis." Journal of Radioanalytical and Nuclear Chemistry 223, no. 1-2 (September 1997): 9–15. http://dx.doi.org/10.1007/bf02223356.
Full textVysotskiy, S. V., N. G. Galkin, A. V. Barkar, E. A. Chusovitin, and A. A. Karabtsov. "Hydrothermal precious opals of the Raduzhnoe deposit, north Primorye: The nature of the opalescence." Russian Journal of Pacific Geology 4, no. 4 (August 2010): 347–54. http://dx.doi.org/10.1134/s1819714010040068.
Full textPovarennykh, M. Yu, A. V. Knot’ko, E. N. Matvienko, P. Yu Plechov, A. A. Burmistrov, and V. L. Luksha. "Peculiarities of the irisation in precious opals in view of their mosaic–cluster (frustumation) inner fabric." Doklady Earth Sciences 467, no. 2 (April 2016): 415–17. http://dx.doi.org/10.1134/s1028334x1604022x.
Full textChauviré, Boris, Benjamin Rondeau, Anne Alexandre, Sarah Chamard-Bois, Carole La, and Francesco Mazzero. "Pedogenic origin of precious opals from Wegel Tena (Ethiopia): Evidence from trace elements and oxygen isotopes." Applied Geochemistry 101 (February 2019): 127–39. http://dx.doi.org/10.1016/j.apgeochem.2018.12.028.
Full textWarren, Graeme. "Mesolithic Montology." Open Archaeology 8, no. 1 (January 1, 2022): 132–44. http://dx.doi.org/10.1515/opar-2022-0227.
Full textTsunekawa, S., Yu A. Barnakov, V. V. Poborchii, S. M. Samoilovich, A. Kasuya, and Y. Nishina. "Characterization of precious opals: AFM and SEM observations, photonic band gap, and incorporation of CdS nano-particles." Microporous Materials 8, no. 5-6 (March 1997): 275–82. http://dx.doi.org/10.1016/s0927-6513(96)00089-2.
Full textSquitieri, Andrea, Silvia Amicone, Ada Dinckal, Mark Altaweel, Shira Gur-Arieh, Jens Rohde, Jean-Jacques Herr, Sophie Pietsch, and Christopher Miller. "A Multi-Method Study of a Chalcolithic Kiln in the Bora Plain (Iraqi Kurdistan): The Evidence From Excavation, Micromorphological and Pyrotechnological Analyses." Open Archaeology 8, no. 1 (January 1, 2022): 853–72. http://dx.doi.org/10.1515/opar-2022-0265.
Full textEstrada Alvarez, Silvia Adriana, Isabella Guger, Jana Febbraro, Ayse Turak, Hong-Ru Lin, Yolanda Salinas, and Oliver Brüggemann. "Synthesis and Spatial Order Characterization of Controlled Silica Particle Sizes Organized as Photonic Crystals Arrays." Materials 15, no. 17 (August 25, 2022): 5864. http://dx.doi.org/10.3390/ma15175864.
Full textOliver, Roger Clive, Muhali Olaide Jimoh, and Charles Petrus Laubscher. "Germination ecology of three Asteraceae annuals Arctotis hirsuta, Oncosiphon suffruticosum, and Cotula duckittiae in the winter-rainfall region of South Africa: A review." Open Agriculture 7, no. 1 (January 1, 2022): 656–67. http://dx.doi.org/10.1515/opag-2022-0115.
Full textSchiffman, Marlene. "Sources for Central and Eastern European Jewish History: The Louis Lewin Collection at Yeshiva University." Judaica Librarianship 11, no. 1 (January 1, 2003): 7–26. http://dx.doi.org/10.14263/2330-2976.1122.
Full textManrique-Ortega, Mayra Dafne, Pieterjan Claes, Valentina Aguilar-Melo, Malinalli Wong-Rueda, José Luis Ruvalcaba-Sil, Edgar Casanova-González, Emiliano Melgar, and Reyna Solis. "Non-Invasive Characterization of Stone Artifacts from the Great Temple of Tenochtitlan, Mexico." MRS Proceedings 1656 (January 13, 2015): 293–307. http://dx.doi.org/10.1557/opl.2015.2.
Full textCerecedo, E., V. Rodríguez, P. D. Andrade, E. Salinas, J. Hernández, and A. Arenas. "Chemical Characterization of a Mineral Deposit of Economic Interest." MRS Proceedings 1766 (2015): 115–22. http://dx.doi.org/10.1557/opl.2015.418.
Full textHeinsch, MaryFran, Pamela B. Vandiver, Kyra Lyublyanovics, Alice M. Choyke, Chandra Reedy, Perry Tourtellotte, and Claudia Chang. "Ceramics at the Emergence of the Silk Road: A Case of Village Potters from Southeastern Kazakhstan during the Late Iron Age." MRS Proceedings 1656 (November 5, 2015): 251–81. http://dx.doi.org/10.1557/opl.2015.841.
Full textPacheco, Emily Barbosa Alves, Dyovana Sena Martins, and Marina Pereira Rocha. "Atividade antibacteriana in vitro de extratos etanólicos e aquosos de <em>Schinus terebinthifolia</em> (aroeira-vermelha) e <em>Cymbopogon nardus</em> (citronela) frente à <em>Staphylococus epidermidis</em> e <em>Staphylococus aureus</em>." Brazilian Journal of Health Review 5, no. 6 (December 19, 2022): 24872–88. http://dx.doi.org/10.34119/bjhrv5n6-236.
Full textMonecke, Thomas, T. James Reynolds, Tadsuda Taksavasu, Erik R. Tharalson, Lauren R. Zeeck, Mario Guzman, Garrett Gissler, and Ross Sherlock. "Natural growth of gold dendrites within silica gels." Geology, January 3, 2023. http://dx.doi.org/10.1130/g48927.1.
Full textNishimura, Shun, Nao Yoshida, and Kohki Ebitani. "Bimetallic PdCu Nanoparticle Catalyst Supported on Hydrotalcite for Selective Aerobic Oxidation of Benzyl Alcohol." MRS Proceedings 1760 (2015). http://dx.doi.org/10.1557/opl.2015.58.
Full textTian, Shipeng, Shaojun Liu, Feng Gao, Min Fan, and Jianguang Ren. "Preparation and Assessment of Superhydrophobic Organic-Inorganic Hybrid Coatings for Conservation of Yungang Grottoes." MRS Proceedings 1319 (2011). http://dx.doi.org/10.1557/opl.2011.736.
Full textBarone, Germana, Paolo Mazzoleni, Danilo Bersani, and Simona Raneri. "Portable XRF: A Tool for the Study of Corundum Gems." Open Archaeology 3, no. 1 (September 26, 2017). http://dx.doi.org/10.1515/opar-2017-0011.
Full textTaki, Yuya, Zhenquan Tan, Satoshi Ohara, Takashi Itoh, Yoshiaki Nakano, Katsushi Fujii, and Masakazu Sugiyama. "Synthesis of CaMn2O4-related electrocatalyst for oxygen evolution electrode of water-splitting." MRS Proceedings 1640 (2014). http://dx.doi.org/10.1557/opl.2014.406.
Full textMondal, Sujit K., Jason Rugolo, and Michael J. Aziz. "Alloy Oxide Electrocatalysts for Regenerative Hydrogen-Halogen Fuel Cell." MRS Proceedings 1311 (2011). http://dx.doi.org/10.1557/opl.2011.108.
Full textWatteaux, Magali. "The Road Network in the Longue Durée: A Reading Key of the History of Territories." Open Archaeology 3, no. 1 (August 28, 2017). http://dx.doi.org/10.1515/opar-2017-0009.
Full textCelano, U., T. Conard, T. Hantschel, and W. Vandervorst. "Probing the metal gate high k interactions by backside XPS and C-AFM." MRS Proceedings 1336 (2011). http://dx.doi.org/10.1557/opl.2011.1125.
Full textWalton, Richard I., Kripasindhu Sardar, Helen Y. Playford, Deena R. Modeshia, Richard J. Darton, Janet Fisher, and David Thompsett. "Controlled Hydrothermal Synthesis of Complex Mixed Oxides Using Solution Redox Chemistry." MRS Proceedings 1309 (2011). http://dx.doi.org/10.1557/opl.2011.198.
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