Alphabetical Listing for N

• Na-Phattalung S, Limpijumnong S, T-Thienprasert J, Yu J (2018) Magnetic states and intervalence charge transfer of Ti and Fe defects in α-Al2O3: The origin of the blue in sapphire. Acta Materialia 143, 248-256.
• Nagara PA, Jacob AS, Reddy BJ (1986) Electronic spectra of Cu2+ and VO43- in vanadinite. Physica Status Solidi B:  Basic Research 135, K39-K42. 
  
• Nagase T, Akizuki M, Onoda M, Sato M (1997) Chrysoprase from Warrawanda, Western Australia. Neues Jahrbuch fuer Mineralogie, Monatshefte 1997: 289-300
• Nasdala L, Wenzel M, Andrut M, Wirth R, Blaum P (2001) The nature of radiohaloes in biotite: Experimental studies and modeling. American Mineralogist 86, 498-512
• Nasdala L, Grambole D, Wildner M,  Gigler AM, Hainschwang T, Zaitsev AM, Harris JW, Milledge J, Schulze DJ, Hofmeister W, Balmer WA (2013) Radio-colouration of diamond: a spectroscopic study. Contributions to Mineralogy and Petrology 165, 843–861
• Nasdala L, Wildner M, Giester G, Chanmung CN, Scicchitano MR, Hauzenberger C (2021) Blue Dravite ('Indicolite') from the Elahera Gem Field, Sri Lanka. The Journal of Gemmology 37,618-630..
• Nassau K, Wood DL (1968) An examination of red beryl from Utah. American Mineralogist 53, 801-806.
• Nassau K (1974) The effects of gamma rays on the color of beryl, smoky quartz, amethyst and topaz. Lapidary Journal 28: 20-26; 36-40
• Nassau K (1975) Gamma ray irradiation induced changes in the color of tourmalines. American Mineralogist 60, 710-713.
• Nassau K, Prescott BE (1975) Blue and brown topaz produced by gamma irradiation. American Mineralogist 60, 705-709
• Nassau K, Prescott BE (1975) A reinterpretation of smoky quartz. Phys Stat sol 29:659-663.
• Nassau K, Prescott BE, Wood DL (1976) The deep blue Maxixe-type color center in beryl. American Mineralogist 61, 100-107
• Nassau K, Prescott BE (1977) Smoky, blue, greenish-yellow, and other irradiation-related colors in quartz. Mineral Magazine 41, 301-312
• Nassau K (1981) Artificially induced color in amethyst-citrine quartz. Gems & Gemology 17, 37–39.
• Nassau K (1983) The Physics and Chemistry of Color: the Fifteen Causes of Color. J Wiley & Sons, New York.
• Nassau K (1985) Altering the color of topaz. Gems & Gemmology 32, 26-34.
• Nassau K, Valente GK (1987) The seven types of yellow sapphire and their stability to light. Gems and Gemology 23, 222-231.
• Nassau K (1996) On the identification and fade testing of Maxixe beryl, golden beryl and green aquamarine. Journal of Gemmology 25, 108-115.
• Navas AS, Reddy BJ, Nieto F (2004) Spectroscopic study of chromium, iron, OH, fluid and mineral inclusions in uvarovite and fuchsite. Spectrochimica Acta Part A 60, 2261–2268.
• Neuhaus A, Richartz W (1958) Absorptionspektrum und Koordination allochromatisch durch Cr3+ gefärbter natürlicher und synthetischer Einkristalle und Kristallpulver. Angew Chem 70:430-434
• Neuhaus A (1960) Über die Ionenfarben der Kristalle und Minerale am Beispiel der Chromfärbungen. Zeitschrift für Kristallographie, 113, 195–233.
• Neuhaus A, Richartz W (1958) Absorptionsspektrum und Koordination allochromatisch durch Cr3+ gefärbter natürlicher und synthetischer Einkristalle und Kristallpulver. Angewandte Chemie 70, 430-434.
• Neuhaus A, Schilly W (1958) The absorption spectrum and co-ordination relations of crystals colored allochromatically by chromic ions. Fortschritte der Mineralogie 36, 64-65.
• Newnham RE, Santoro RP (1967) Magnetic and optical properties of dioptase. Phys Stat Sol. 19:K87-K90
• Nicastro I, Vertriest W, Renfro N, Sun Z, Palke A, Mattlin P (2020) Purplish pink diaspore reportedly from Afghanistan. Gems & Gemology 56. 298-301.
• Niesert A, Hanrath M, Siggel A, Jansen M, Langer K (2002) Theoretical study of the polarized electronic absorption spectra of vanadium-​doped zircon. Journal of Solid State Chemistry 169, 6-12.
• Niesert A, Sievers R, Siggel A, Langer K, Jansen Martin (2004) Preparation and optical absorption of zircons, co-​doped with vanadium and rare earth elements. Solid State Sciences 6, 1149-1154.
• Nikolskaya LV, Lisitsyna EE, Samoilovich MI (1974) Coloration of turquoise from the deposits of Central Asia. Izvestiya Akademii Nauk SSSR, Seriya Geologicheskaya 1974, 105-11. (In Russian )
• Nikolskaya LV, Terekhova VM, Samoilovich MI (1978) On the origin of natural sapphire color. Physics and Chemistry of Minerals 3, 213-224
• Nitsan U, Shankland TJ (1976) Optical properties and electronic structure of mantle silicates. GeoPhys J R Astr Soc 45: 59-87
• Noack Y, Decarreau A, Manceau A (1986) Spectroscopic and oxygen isotope evidence for low and high temperature origin of talc. Bull Mineral 109, 253-263.
• Noginov MA, Privis YuC, Saidov ZS, Smirnov VA, Scherbakov IA (1988) Temperature dependence of 4A2->4T2 transition probability of Cr3+-ions in the crystal of yttrium-scandium gallium garnet. Z Prikl Spektroskop 49, 296-299 (in Russian).
• Noithong P, Pakkong P, Naemchanthara K (2013) Color change of spodumene gemstone by electron beam irradiation. Advanced Materials Research 770, 370-373.
• Notari F, Boillat PY, Grobon C (2001) La tanzanite (beta zoïsite): Détection du traitement thermique. Revue de gemmologie 141/142, 34-36.
• Novozhilov AI, Samoilovich MI, Mikulskaya EK, Parushnikova LI (1966) Nature of the blue coloration of cancrinite crystals. Zap Vses Mineral Ova 95: 736-738 (in Russian)
• Novozhilov AI, Nosov SF, Gorbacheva GA, Samoilovich MI (1988) EPR and optical absorption of radiation-​induced color centers in danburite. Mineralogicheskii Zhurnal 10, 85-8. In Russian
• Nuner EHM, Lameiras FS (2005) The optical absorptino of gamma irradiated and heat-treated natural quartz. Materials Research 9, 305-308.
• Nunes EHM, Lameiras FS, Houmard M, Vasconcelos WL (2013) Spectroscopic study of natural quartz samples. Radiation Physics and Chemistry 90, 79-86.
• Nussik SAM (1969) Optical absroption spectra of Ni-bearing minerals. Izvestiya Akademii Nauk SSSR. Seriya Geologicheskaya Ser. 3, 108-112.