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References > Quartz
First draft: January 2^nd, 2014 | Last update: February 19^th, 2014 | References: 100

Keywords: General, ID, Inclusions, Isotope Research, Spectra, Synthetics, Treatments.

General

Agheem, M.H., Shah, M.T., Khan, T., Arif, M. & Laghari, A. (2010). Mineralogical studies of the gemstones-bearing pegmatites of the Shigar valley, Skardu, Gilgit-Baltistan, Pakistan. Journal of Himalayan Earth Sciences, Vol. 43, p. 1.

Balitsky, V.S. & Balitskay, O.V. (1986). The amethyst-citrine dichromatism in quartz and its origin. Physics and Chemistry of Minerals, Vol. 13, Issue 6 (November), pp. 415-421. abstract + references

Balitsky, V.S., Makhina, I.B., Emel’chenko, A.G., Mar’in, A.A., Shigley, J., Fritsch, E. & Koivula, J. (1996). Formation of rose phosphorus-bearing quartz and causes of its rarity nature: an experimental study. Geochimiya, No. 11, pp. 1074-1081 (in Russian).

Barry, T.I., McNamara, P. & Moore, J.P. (1965). Paramagnetic resonance and optical properties of amethyst. Journal of Chemical Physics, Vol. 45, pp. 2599-2606. abstract

Buerger, M.J. (1954). The stuffed derivatives of the silica structures. American Mineralogist, Vol. 39, pp. 600-614. American Mineralogist Tables of Contents

Chauvire, B. (2012). La silice issue de l'altération de massifs ultramafiques; étude de cas de la Butte de la Roche (Le Lorroux-Bottereau, 44). Diplôme d'Université de Gemmologie (DUG) Dissertation, University of Nantes, 43 p. (in French). Published on www.gemnantes.fr

Cohen, A.J. (1960). Substitutional and interstitial aluminum impurity in quartz, structure and color center interrelationships. Journal of Physics and Chemistry of Solids, Vol. 13, Issues 3-4, pp. 321-325. abstract

Cohen, A.J. & Makar, L.N. (1985). Dynamic biaxial absorption spectra of Ti³⁺ and Fe²⁺ in a natural rose quartz crystal. Mineralogical Magazine, Vol. 49, pp. 709-715. abstract Mineralogical Magazine Tables of Contents

Cornejo, C. & Bartorelli, A. (2009). Minerals & Precious Stones of Brazil. Solaris Cultural Publications, São Paulo, Brazil, 704 p. ISBN 978-85-89820-08-0.
Featured chapters:
The large quartz family, pp. 619-623.
Rock crystal, pp. 624-629.
Citrine, pp. 630-632.
Smoky quartz, pp. 633-635.
Smoky quartz, pp. 633-635.
Exceptional amethysts, pp. 641-652.

Cox, R.T. (1977). Optical absorption of the d4 ion Fe⁴⁺ in pleochroic amethyst quartz. Journal of Physics C: Solid State Physics, Vol. 10, pp. 4631-4643. abstract

Cristino Filho, C. de J. (2001). Utilisation de techniques de laboratoire de gemmologie sur quelques gemmes brésiliennes. Diplôme d'Université de Gemmologie (DUG) Dissertation, University of Nantes, 47 p. (in French). Published on www.gemnantes.fr

Dirlam, D.M., Misiorowski, E.B. & Tozer, R., Stark, K.B. & Bassett, A.M. (1992). Gem wealth of Tanzania. Gems & Gemology, Vol. 28, No. 2 (Summer), pp. 80–102.

Frondel, C. (1934). Origin of the segmental coloration of amethyst and smoky quartz. American Museum Novitates, Vol. 758, pp. 1-15.

Goette, T. (2008). Cathodoluminescence of authigenic quartz: A fingerprint of crystallisation dynamics? 33^rd International Geological Congress Oslo 2008, August 6-14^th. abstract

Götze, J. & Möckel, R. (Editors) (2012). Quartz: Deposits, Mineralogy and Analytics. Springer-Verlag Berlin Heidelberg, Germany, XVI + 360 p., ISBN 978-3-642-22160-6 (Hardcover), 978-3-642-43921-6 (Softcover), 978-3-642-22161-3 (eBook). content

Hall, R.N. (1953). Segregation of impurities during the growth of germanium and silicon crystals. Journal of Physical Chemistry, Vol. 57, pp. 836-839. excerpt

Hassan, F. & Cohen, A.J. (1974). Biaxial color centers in amethyst quartz. American Mineralogist, Vol. 59, pp. 709-718. American Mineralogist Tables of Contents

Henn, U. & Schultz-Güttler, R. (2012). Review of some current coloured quartz varieties. The Journal of Gemmology, Vol. 33, No. 1-4, pp. 29-43.

Ignatov, S.I., Platonov, A.N. (1992). Effect of light scattering on the optical-spectroscopic characteristics of and color parameters of chalcedony. Mineralogicheskii Zhurnal, Vol. 14, pp. 23-29 (in Russian).

Kats, A. (1961). Hydrogen in α-quartz. Doctoral dissertation Technical University Delft, Delft, The Netherlands, 148 + 2 p.

Kitawaki, H. (2002). Natural amethysts from Caxarai mine, Brazil, with a spectrum containing an absorption peak at 3543cm⁻¹. The Journal of Gemmology, Vol. 28, pp. 101-108.

Koivula, J.I. & Misiorowski, E. (Editors) (1986). Gem News: Phosphorescent fake. Gems & Gemology, Vol. 22, No. 3 (Fall), p. 188.

Lehmann, G. (1969). Zur Farbe von Rosenquarz. Neues Jahrbuch für Mineralogie, Monatshefte, Vol. 1969, pp. 222-225.

Lehmann, G. (1975). On the Color Centers of Iron in Amethyst and Synthetic Quartz: A Discussion. American Mineralogist, Vol. 60, pp. 335-337. American Mineralogist Tables of Contents

Lehmann, G. & Bambauer, H.U. (1973). Quartz crystals and their colors. Angewandte Chemie - International Edition, Vol. 12, Issue 4 (April), pp. 283-291. abstract

Maschmeyer, D. & Lehmann, G. (1983). A trapped-hole center causing rose coloration of natural quartz. Zeitschrift für Kristallographie, Vol. 163, Issue 3-4 (August), pp. 181-196. abstract

Muller, A. & Williamson, B.J. (2008). Cathodoluminescent quartz textures in transitional magmatic-hydrothermal systems. 33^rd International Geological Congress Oslo 2008, August 6-14^th. abstract

Nassau, K. & Prescott, B.E. (1975). A reinterpretation of smoky quartz. physica status solidi, Vol. 29, Issue 2 (June), pp. 659-663. abstract

Nagase, T., Akizuki, M., Onoda, M. & Sato, M. (1997). Chrysoprase from Warrawanda, Western Australia. Neues Jahrbuch für Mineralogie, Monatshefte, Vol. 7, pp. 289-300.

O'Donoghue, M. (1987). Quartz. Butterworths, London, U.K., 110 p. ISBN 0-408-01462-8.

Partlow, E.P. & Cohen, A.J. (1986). Optical studies of biaxial Al-related color centers in smoky quartz. American Mineralogist, Vol. 71, pp. 589-598. American Mineralogist Tables of Contents

Pearl, R.M. (1939). The Gems of Colorado. Gems & Gemology, Vol. 3, No. 3 (Fall), pp. 39-40.

Pearl, R.M. (1939). The Gems of Colorado. Gems & Gemology, Vol. 3, No. 4 (Winter), pp. 59-60.

Platonov, A.N., Sakhanbinskiy, M., Ignatov, S.I. & Vrublevskiy, P. (1991). Natural prasiolite from the Lower Silesia (Poland). Doklady Akademii Nauk Ukrainskoj SSR, Vol. xx, pp. 112-116 (in Russian).

Platonov, A.N., Sakhanbinskiy, M., Vrublevskiy, P. & Ignatov, S.I. (1991). Rare varieties of green quartz from the quartz-agate geodes in Lower Silesia, Poland. Mineralogicheskiy Zhurnal, Vol. 13, pp. 10-17 (in Ukranian).

Platonov, A.N., Sachanbinski M, Wroclaw, P., Wróblewski, P. & Ignatov, S.I. (1992). Natural prasiolite from Lower Silesia, Poland. Gemmologie: Zeitschrift der Deutschen Gemmologischen Gesellschaft, Vol. 41, pp. 21-27 (in German).

Poty, B. (1969). La croissance des cristaux de quartz dans les filons sur l'exemple du filon de La Gardette (Bourg d'Oisans) et des filons du massif du Mont-blanc. Science de la Terre, Memoire No. 17, Nancy, 91 p. (in French).

Proust, D. & Fontaine, C. (2007). Amethyst geodes in the basaltic flow from Triz quarry at Ametista do Sul (Rio Grande do Sul, Brazil): magmatic source of silica for the amethyst crystallizations. Geological Magazine, Vol. 144, No. 4, pp. 731-739. abstract

Rykart, R. (1989). Quarz-Monographie. Die Eigenheiten von Bergkristall, Rauchquarz, Amethyst und anderen Varietäten. Ott Verlag Thun, Switzerland, 413 p. ISBN 3-7225-6293-7 (in German).

Sakhanbinskiy, M., Janeczek, J., Platonov, A. & Rietmeijer, F.J.M. (2001). The orgin of colour of chrysoprase from Szklary (Poland) and Sarykul Boldy (Kazakhstan). Neues Jahrbuch für Mineralogie, Abhandlungen, Vol. 177, No. 1 (December), pp. 61-76 (in German). abstract

Smith, G., Vance, E.R., Hasan, Z., Edgar, A. & Runciman, W.A. (1978). A charge transfer mechanism for the colour of rose quartz. physica status solidi (a), Vol. 46, pp. K135-K140. abstract

Schirmer, O.F. (1976). Smoky coloration of quartz caused by bound small polaron optical absorption. Solid State Communications, Vol. 18, Issues 9-10, pp. 1349-1353. abstract

Suwa, Y. (1993-2000). Gemstones - Quality & Value. Sekai Bunka Publishing, Inc., Tokyo, Japan. 3 Vols; Vol. 1 - 143 p., ISBN 4-418-99902-7; Vol. 2 - 144 p., ISBN 4-418-02902-8; Vol. 3 - 144 p., ISBN 4-418-01902-2.

ID | Spectra | Synthetics

Balitsky, V.S., Khetchikov, L.N., Orlova, V.P. & Balitskaya, L.V. (1976). Process for producing an amethyst crystal. US Patent No. US3936276 A. Filed December 6^th 1973, published February 3^rd 1976.

Balitsky, V.S. (1977). Growth of large amethyst crystals from hydrothermal fluoride solutions. Journal of Crystal Growth, Vol. 41, Issue 1 (November), pp. 100-102. abstract

Balitsky, V.S. (1978). Les conditions de formation des améthystes et leur croissance artificielle. Bulletin de Minéralogie, Vol. 101, pp. 383-386 (in French).

Balitsky, V.S. (1981). Gemmology of some colored varieties of synthetic quartz. Journal of the Gemmological Society of Japan, Vol. 8, pp. 103-117.

Balitsky, V.S., Makhina, I.B., Prygov, V.I., Mar’in, A.A., Emel’chenko, A.G., Fritsch, E., McClure, S.M., Lu, T., DeGhionno, D., Koivula, J.I. & Shigley, J.E. (1998). Russian Synthetic Pink Quartz. Gems & Gemology, Vol. 34, No. 1 (Spring), pp. 34-43.

Balitsky, V.S., Lu, T., Rossman, G.R., Makhina, I.B., Mar'in, A.A., Shigley, J.E., Elen, J. & Dorogovin, B.A. (1999). Russian Synthetic Ametrine. Gems & Gemology, Vol. 35, No. 2 (Summer), pp. 122-134.

Balitsky, V.S., Bondarenko, G.V., Balitskaya, O.V. & Balitsky, D.V. (2004). IR spectroscopy of natural and synthetic amethysts in the 3000–3700cm⁻¹ region and problems of their identification. Doklady Earth Sciences, Vol. 394, pp. 120-123.

Balitsky, V.S., Balitsky, D.V., Bondarenko, G.V. & Balitskaya, O.V. (2004). The 3543cm⁻¹ infrared absorption band in natural and synthetic amethyst and its value in identification. Gems & Gemology, Vol. 40, No. 2 (Summer), pp. 146-161.

Blass, W.E. & Halsey, G.W. (1981). Deconvolution of absorption spectra. Academic Press, New York, NY, U.S.A., 158 p. ISBN 0-12-104650-8.

Breeding, C.M. & Shen, A.H. (2010). Separation of natural and synthetic gemstones using LA-ICP-MS: Amethyst, citrine, and malachite. Geochimica et Cosmochimica Acta, Vol. 74, Issue 11, Supplement 1, Goldschmidt Conference Abstracts 2010, p. A120.

Cohen, A.J. & Hassan, F. (1974). Ferrous and ferric ions in synthetic α-quartz and natural amethyst. American Mineralogist, Vol. 59, pp. 719-728. American Mineralogist Tables of Contents

Chuvyrov, A.N. & Mazitov, R.M. (2008). Structure and properties of quartz crystals grown from fluoride solutions: I. The morphology of basal pinacoid habit. Crystallography Reports, Vol. 53, Issue 5 (September), pp. 894-899. abstract + references

Chuvyrov, A.N., Mazitov, R.M., Kalimgulov, A.R., Lebedev, Y.A. (2009). The structure and properties of quartz crystals grown from fluoride solutions: Part II. The burgers vector of the growth screw superdislocations. Crystallography Reports, Vol. 54, Issue 4 (July), pp. 692-696. abstract + references

Crowningshield, R., Hurlbut, C. & Fryer, C.W. (1986). A simple procedure to separate natural from synthetic amethyst on the basis of twinning. Gems & Gemology, Vol. 22, No. 3 (Fall), pp. 130-139.

Fritsch, E. & Koivula, J.I. (1987a). How to tell if that amethyst is natural. Jewelers’ Circular Keystone, Vol. 158, pp. 322-324.

Fritsch, E. & Stockton, C.M. (1987b). Infrared spectroscopy in gem identification. Gems & Gemology, Vol. 23, No. 1 (Spring), pp. 18-26.

Fritsch, E. & Koivula, J.I. (1988). How to tell natural amethyst. Jewelers’ Circular Keystone, Vol. 154, pp. 244-248.

Fritsch, E. & Koivula, J.I. (1989). The growth of Brazil-twinned synthetic quartz and the potential for synthetic amethyst twinned on the Brazil law. Gems & Gemology, Vol. 25, No. 3 (Fall), pp. 159-164.

Fritsch, E. & McClure, S.F. (1995). Synthetic amethyst: features of new type from Russia. Jewellery News Asia, Vol. 129, pp. 90-92.

Hainschwang, T. (2009). The synthetic quartz problem. GemGuide - Gem Market News, Vol. 28, Issue 1 (January/February), pp. 1-5.

Hosaka, M. & Taki, S. (1983). Hydrothermal growth of amethyst and citrine in NaCl and KCl solutions. Journal of Crystal Growth, Vol. 64, Issue 3 (December), pp. 572–576. abstract

Hoska, M., Miyata, T., Shimizu, Y. & Okuyama, O. (1986). Synthesis of rose-quartz crystal. Journal of Crystal Growth, Vol. 78, Issue 3 (December), pp. 561-562. abstract

Iwasaki, F. & Iwasaki, H. (2002). Historical review of quartz crystal growth. Journal of Crystal Growth: Proceedings of the 13^th international conference on Crystal Growth in conjunction with the 11^th international conference on Vapor Growth and Epitaxy, Vols. 237-239, Part 1 (April), pp. 820–827. Kyoto, Japan, 904 p. abstract

Kammerling, R.C., Koivula, J.I., Johnson, M.L. & Fritsch E. (Editors) (1995). Gem News: Unusual color-zoned synthetic amethyst. Gems & Gemology, Vol. 31, No. 3 (Fall), p. 213-214.

Kammerling, R.C., Koivula, J.I., Johnson, M.L. & Fritsch E. (Editors) (1995). Gem News: Natural and synthetic quartz "constructs". Gems & Gemology, Vol. 31, No. 3 (Fall), p. 216.

Karampelas, S. & Fritsch, E. (2004). Infrared absorption as a useful tool to separate natural from synthetic amethysts. Mitteilungen der Österreichischen Mineralogischen Gesellschaft, Vol. 149, p. 43.
Mitt. Österr. Mineral. Ges. Contents

Karampelas, S., Fritsch, E., Zorba, T., Paraskevopoulos, K.M., Sklavounos, S. (2005). Distinguishing natural from synthetic amethysts: the presence and true shape of the 3595 cm^-1 peak. Mineralogy and Petrology, Vol. 85, Issue 1-2 (November), pp. 45-52. abstract + references

Karampelas, S., Fritsch, E., Zorba, T., Paraskevopoulos, K.M., Sklavounos, S. (2006). A refined infrared-based criterion for successfully separating natural from synthetic amethyst. Gems & Gemology: Proceedings of the 4^th International Gemological Symposium & GIA Gemological Research Conference, August 2006, San Diego, California, Vol. 42, No. 3 (Fall), pp. 155-156.

Karampelas, S., Fritsch, E., Zorba, T., Paraskevopoulos, K.M., Sklavounos, S. (2007). An update in the separation of natural from synthetic amethysts. Bulletin of the Geological Society of Greece, Vol. 40, Proceedings of the 11^th International Congress, Athens, May 2007, pp. 805-815.

Karampelas, S., Fritsch, E., Zorba, T. & Paraskevopoulos, K.M. (2011). Notes & New Techniques. Infrared spectroscopy of natural vs. synthetic amethyst: An update. Gems & Gemology, Vol. 47, No. 3 (Fall), pp. 196-201.

Khadzhi, V.E., Tsyganov, M.E., Tsinober, L.I., Novozhilova, Z.V., Reshetova, G.V., Samoilovich, M.I., Butuzov, V.P., Shaposhnikov, A.A. & Lelekova, M.L. (1977). Process for producing amethyst crystals. US Patent No. US4021294 A. Filed April 21^st 1976, published May 3^rd 1977.

Kitawaki, H. (2002). Natural amethysts from Caxarai mine, Brazil, with a spectrum containing an absorption peak at 3543cm⁻¹. The Journal of Gemmology, Vol. 28, pp. 101-108.

Koivula, J.I. & Fritsch, E. (1989). The growth of Brazil-twinned synthetic quartz and the potential for synthetic amethyst twinned on the Brazil law. Gems & Gemology, Vol. 25, No. 3 (Fall), pp. 159-164.

Lameiras, F.S., Nunes, E.H.M. & Vasconcelos, W.L. (2009). Infrared and chemical characterizations of natural amethysts and prasiolites colored by irradiation. Materials Research, Vol. 12, No. 3 (July/September), pp. 315–320.

McMillena, C.D. & Kolisa, J.W. (2012). Bulk single crystal growth from hydrothermal solutions. Philosophical Magazine, Special Issue: Symposium on Design, Discovery and Growth of Novel Materials, Vol. 92, Issue 19-21, pp. 2686-2711. abstract

Nimi, N., Aikawa, N. & Shinoda, K. (1999). The infrared absorption band at 3596 cm^–1 of the recrystallized quartz from Mt. Takamiyama, southwest Japan. Mineralogical Magazine, Vol. 63, No. 5, pp. 693–701.
Mineralogical Magazine Tables of Contents

Notari, F., Boillat, P.Y. & Grobon, C. (2001). Discrimination des améthystes et des citrines naturelles et synthétiques. Revue de Gemmologie, Association Française de Gemmologie, No. 141-142, pp. 75-80 (in French).

Smaali, M. (1998). Hétérodiffusion et irradiation gamma du quartz alpha. Ph.D. dissertation, Université de Franche-Comté, Besançon, France, 134 p. abstract (in French)

Schmetzer, K. (1989). Methods for the distinction of natural and synthetic citrine and prasiolite. The Journal of Gemmology, Vol. 21, No. 6, pp. 368-391.

Staats, P.A. & Kopp, O.C. (1974). Studies on the origin of the 3400 cm⁻¹ region infrared bands of synthetic and natural α-quartz. Journal of Physics and Chemistry of Solids, Vol. 35, Issue 9 (September), pp. 1029-1033. abstract

Taijing, L., Sunagawa, I. & Balitsky, V.S. (1990). Brazil twinning in natural and synthetic amethyst crystals. Journal of Crystal Growth, Vol. 99, Issues 1–4, Part 2 (January), pp. 1232–1237. abstract

Zecchini, P. & Smaali, M. (1999). Identification de l’origine naturelle ou artificielle des quartz. Revue de Gemmologie, Association Française de Gemmologie, No. 138-139, pp. 74-80 (in French).

Zecchini, P. (1979). Etude de l’absorption infrarouge de quartz d’origine naturelle ou de synthèse. Revue de Gemmologie, Association Française de Gemmologie, No. 60, pp. 14-18 (in French).

Inclusions

Choudhary, G. (2013). Dumortierite-Quartz Rock Presented as Sapphire. Gems & Gemology, Vol. 49, No. 1 (Spring), pp. 59-60.

Cornejo, C. & Bartorelli, A. (2009). Quartz with inclusions In: Minerals & Precious Stones of Brazil, pp. 653-655. Solaris Cultural Publications, São Paulo, Brazil, 704 p. ISBN 978-85-89820-08-0.

Cornejo, C. & Bartorelli, A. (2009). Rutilated quartz In: Minerals & Precious Stones of Brazil, pp. 656-660. Solaris Cultural Publications, São Paulo, Brazil, 704 p. ISBN 978-85-89820-08-0.

Goreva, J.S., Chi, M. & Rossman, G.R. (2001). Fibrous nano-inclusions in massive rose quartz. The origin of rose coloration. American Mineralogist, Vol. 86, pp. 466-472. American Mineralogist Tables of Contents

Gübelin, E.J. (1983). Quartz: Treasure-Trove of rare Inclusions In: Internal World of Gemstones. Documents from Space and Time, pp. 170-179. 3^rd edition. ABC Edition, Zürich, Switzerland, 234 p. ISBN 3-85504-030-3.
Note: 1^st Edition (1973). Innenwelt der Edelsteine. Urkunde aus Raum und Zeit. ABC Edition, Zürich, Switzerland, 233 p. ISBN 3-85504-030-3 (in German; ISBN checked in the original copies).

Gübelin, E.J. & Koivula, J.I. (1997). Quartz and its Inclusions In: Photoatlas of Inclusions in Gemstones, pp. 309-323. 3^rd revised edition. ABC Edition, Zürich, Switzerland, 532 p., ISBN 3-85504-095-8.

Gübelin, E.J. & Koivula, J.I. (2005). Inclusions in Gems of Commercial Importance: Quartz In: Photoatlas of Inclusions in Gemstones. Volume 2, pp. 541-661. Opinio Publishers, Basel, Switzerland, 829 p., ISBN 3-03999-029-2.

Hyrsl, J. & Niedermayr, G. (2003). Geheimnisvolle Welt: Einschlüsse im Quarz | Magic World: Inclusions in Quartz. Bode Verlag, Harlern, Germany, 240 p. ISBN 3-925094-81-4 (in German and English).

Hyrsl, J. (2004). Gem News International: Fake inclusions in quartz, "made in Brazil". Gems & Gemology, Vol. 40, No. 3 (Fall), pp. 266-267.

Hyrsl, J., Danet, F. & Fritsch, E. (2005). Gem News International: Bismuthinite inclusions in rose quartz from Madagascar. Gems & Gemology, Vol. 41, No. 2 (Summer), pp. 181-182.

Ignatov, S.I., Platonov, A.N., Sedenko, V.S. & Taran, M.N. (1990). Rose color of quartz caused by dumortierite micro-inclusions. Dopovidi Akademii Nauk Ukrainskoi RSR, Seriya B7, pp. 23-27 (in Ukranian).

Killingback, H. (2006). Diasterism in rose quartz. Gems & Jewellery, Vol. 16, No. 2, p. 64.

Koivula, J.I. & Kammerling, R.C. (Editors) (1989). Gem News: Man-made "inclusion" specimens. Gems & Gemology, Vol. 25, No. 1 (Spring), pp. 45-46.

Koivula, J.I. (2004). Gem News International: Petroleum inclusions in quartz from Pakistan: a photo-essay. Gems & Gemology, Vol. 40, No. 1 (Spring), pp. 79-80.

Macri, M. (2010). Les "medusa quartz" et autres curiosités brésiliennes. Revue de Gemmologie, Association Française de Gemmologie, No. 174, pp. 7-13 (in French).

Renfro, N., Ziyin Sun, Z. & Koivula, J.I. (2015). Gem News International: Dumortierite In Rock Crystal Quartz. Gems & Gemology, Vol. 51, No. 1 (Spring), pp. 100-102.

Rondeau, B. (2006). Letter to the Editor: More about Medusa quartz. Gems & Gemology, Vol. 42, No. 2 (Summer), p. 97.

Rondeau, B., Macri M. & Fritsch, E. (2005). Gem News International: "Medusa quartz" with gilalite inclusions. Gems & Gemology, Vol. 41, No. 3 (Fall), pp. 271-272.

Schmetzer, K., Steinbach, M.P., Gilg, H.A. & Blake, A.R. (2015). Dual-color double stars in corundum and quartz In: Proceedings: 34^th International Gemmological Conference IGC, Vilnius, Lithuania, 26-30 August 2015, pp. 60-64. The entire publication is available on www.igc-gemmology.net

Isotope Research

Jourdan, A.-L., Vennemann, T.W. & Mullis, J. (2005). Trace element and oxygen isotope zonations in growth sectors of natural quartz crystals. Geochimica et Cosmochimica Acta Supplement, Vol. 69, Issue 10, Supplement 1, Goldschmidt Conference Abstracts 2005, p. A862. abstract

Jourdan, A.-L., Vennemann, T.W., Mullis, J., Ramseyer, K. & Spiers, C.J. (2007). Trace element distributions in hydrothermal quartz: fluid or structural control? Geochimica et Cosmochimica Acta, Vol. 71, No. 15, pp. A451-A451. abstract

Jourdan, A.-L., Vennemann, T.W., Mullis, J. & Ramseyer, K. (2008a). Face-related Differential Partitioning of Oxygen Isotopes in low Temperature Quartz. Oral presentation, European Geosciences Union 2008, Vienna (Austria). abstract

Jourdan, A.-L., Vennemann, T.W., Mullis, J. & Ramseyer, K. (2008b). What can we learn from parallel studies of trace element and oxygen isotope zoning in quartz? 33^rd International Geological Congress Oslo 2008, August 6-14^th. abstract

Jourdan, A.-L., Vennemann, T.W., Mullis, J. & Ramseyer, K. (2009a). Oxygen isotope sector zoning in natural hydrothermal quartz. Mineralogical Magazine, Vol. 73, No. 4, pp. 615-632. abstract
Mineralogical Magazine Tables of Contents

Jourdan, A.-L., Vennemann, T.W., Mullis, J., Ramseyer, K. & Spiers, C.J. (2009b). Evidence of growth and sector zoning in hydrothermal quartz from Alpine veins. European Journal of Mineralogy, Vol. 21, No. 1, pp. 219-231. abstract

Leeder, O., Thomas, R. & Klemm, W. (1987). Einschlüssen in Mineralen. VEB Deutscher Verlag für Grundstoffindustrie, Leizig, Germany, 180 p. ISBN 3-342-00088-0.

Roedder, E. (1984). Reviews in Mineralogy, Vol. 12: Fluid Inclusions. Mineralogical Society of America, Chantilly, Virginia, U.S.A., 646 p. ISBN 0-939950-16-2. Reviews in Mineralogy and Geochemistry Overview

Treatments

Cohen, A.J. & Makar, L.N. (1984). Differing effects of ionizing radiation in massive and single crystal rose quartz. Neues Jahrbuch für Mineralogie, Monatshefte, Vol. 11, pp. 513-521.

Cohen, A.J. (1985). Amethyst color in quartz, the result of radiation protection involving iron. American Mineralogist, Vol. 70, pp. 1180-1185. American Mineralogist Tables of Contents

Güttler, R.S. & Kohigashi, H.C. (2006). Gem News International: Treated violetish blue to violet quartz from Brazil. Gems & Gemology, Vol. 42, No. 4 (Winter), pp. 285-286.

Kane, R.E. (1985). Gem Trade Lab Notes: Amethyst, heat treated. Gems & Gemology, Vol. 21, No. 1 (Spring), p. 43.

Koivula J.I., Kammerling R.C. & Fritsch E. (1992). Update on dyed green quartz. Gems & Gemology, Vol. 28, No. 3 (Fall), pp. 205-206.

Nassau, K. & Prescott, B.E. (1977). Smoky, blue, greenish-yellow, and other irradiation-related colors in quartz. Mineralogical Magazine, Vol. 41, pp. 301-312. abstract Mineralogical Magazine Tables of Contents

Nassau, K. (1981). Artificially induced color in amethyst-citrine quartz. Gems & Gemology, Vol. 17, No. 1 (Spring), pp. 37-39.

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Weeks, R.A. (1970). Paramagnetic resonance and optical absorption in gamma-ray irradiated alpha quartz: The "Al" center. Journal of the American Ceramic Society, Vol. 53, Issue 4, pp. 176-179. abstract

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