Summer 2007

Gemological Abstracts

COLORED STONES AND ORGANIC MATERIALS
Fossils in amber: Unlocking the secrets of the past. D. Penney [david.penney@manchester.ac.uk], Biologist, Vol. 53, No. 5, 2006, pp. 247–251.

Genesis and composition of lazurite in magnesian skarns. S. M. Aleksandrov and V. G. Senin, Geochemistry International, Vol. 44, No. 10, 2006, pp. 976–988.

Herkunftsbestimmung von Süßwasserzuchtperlen mit Laser Ablations ICP-MS [Provenance determination of freshwater cultured pearls using laser ablation ICP-MS]. D. E. Jacobi, U. Wehrmeister, T. Häger, and W. Hofmeister, Gemmologie: Zeitschrift der Deutschen Gemmologischen Gesellschaft, Vol. 55, No. 1–2, 2006, pp. 51–58 [in German with English abstract].

Mineralogy of fossil resins of northern Eurasia. M. A. Bogdasarov, Proceedings of the Russian Mineralogical Society, Vol. 135, No. 6, 2006, pp. 66–78 [in Russian with English abstract].

The nanostructure of fire opal. E. Fritsch, E. Gaillou [eloise.gaillou@cnrs-imn.fr], B. Rondeau, A. Barreau, D. Albertini, and M. Ostroumov, Journal of Non-Crystalline Solids, Vol. 352, 2006, pp. 3957–3960.

Vetri naturali [Natural glasses]. M. C. Venuti, Rivista Gemmologica Italiana, Vol. 1, No. 1, 2006, pp. 25–37 [in Italian].

DIAMONDS
Diamonds from the Udachnaya pipe, Yakutia. V. Rolandi [vanda.rolandi@unimb.it], A. Brajkovic, I. Adamo, and M. Landonio, Australian Gemmologist, Vol. 22, No. 10, 2006, pp. 387–397.

Directional chemical variations in diamonds showing octahedral following cuboid growth. D. A. Zedgenizov, B. Harte [ben.harte@ed.ac.uk], V. S. Shatsky, A. A. Politov, G. M. Rylov, and N. V. Sobolev, Contributions to Mineralogy and Petrology, Vol. 151, 2006, pp. 45–57.

Natural, untreated diamonds showing the A, B and C infrared absorptions ("ABC diamonds"), and the H2 absorption. T. Hainschwang, F. Notari, E. Fritsch, and L. Massi, Diamond and Related Materials, Vol. 15, 2006, pp. 1555–1564.

Some observations on diamondiferous bedrock gully trapsites on Late Cainozoic, marine-cut platforms of the Sperrgebiet, Namibia. J. Jacob [janajacob@namdeb.com.na], J. D. Ward, B. J. Bluck, R. A. Scholz, and H. E. Frimmel, Ore Geology Reviews, Vol. 28, 2006, pp. 493–506.

GEM LOCALITIES
Amethyst-bearing lava flows in the Paraná Basin (Rio Grande do Sul, Brazil): Cooling, vesiculation and formation of geodic cavities. D. Proust [dominique.proust@hydrasa.univ-poitiers.fr] and C. Fontaine, Geological Magazine, Vol. 144, No. 1, 2006, pp. 53–65.

Ar-Ar and U-Pb ages of marble-hosted ruby deposits from central and southeast Asia. V. Garnier, H. Maluski, G. Giuliani [giuliani@crpg.cnrs-nancy.fr], D. Ohnenstetter, and D. Schwarz, Canadian Journal of Earth Sciences, Vol. 43, No. 4, 2006, pp. 509–532.

Contrasts in gem corundum characteristics, eastern Australian basaltic fields: Trace elements, fluid/melt inclusions and oxygen isotopes. K. Zaw [khin.zaw@utas.edu.au], F. L. Sutherland, F. Dellapasqua, C. G. Ryan, T.-F. Yui, T. P. Mernagh, and D. Duncan, Mineralogical Magazine, Vol. 70, No. 6, 2006, pp. 669–687.

Famous mineral localities: The Erongo Mountains, Namibia. B. Cairncross [bc@rau.ac.za] and U. Bahmann, Mineralogical Record, Vol. 37, No. 5, 2006, pp. 361–470.

Formation of emeralds at pegmatite-ultramafic contacts based on fluid inclusions in Kianjavato emerald, Mananjary deposits, Madagascar. Ye. Vapnik [vapnik@bgu.ac.il], I. Moroz, M. Roth, and I. Eliezri, Mineralogical Magazine, Vol. 70, No. 2, 2006, pp. 141–158.

The variation of gemmological properties and chemical composition of gem-quality taaffeites and musgravites from Sri Lanka. K. Schmetzer [schmetzerkarl@hotmail.com], L. Kiefert, H.-J. Bernhardt, and M. Burford, Australian Gemmologist, Vol. 22, No. 10, 2006, pp. 485–492.

INSTRUMENTS AND TECHNIQUES
Gemmologia a basso costo. Costruirsi una bilancia per il peso specifico delle gemme [Gemology at low cost. How to construct a specific gravity scale for gems]. P. F. Moretti, Rivista Gemmologica Italiana, Vol. 1, No. 1, 2006, pp. 61–64 [in Italian].

JEWELRY HISTORY
Italian gemology during the Renaissance: A step toward modern mineralogy. A. Mottana [mottana@uniroma3.it], Geological Society of America Special Paper 411, 2006, pp. 1–21.

SYNTHETICS AND SIMULANTS
Distribution of nitrogen-related defects in diamond single crystals grown under nonisothermal conditions. Y. V. Babich [babichyv@uiggm.nsc.ru] and B. N. Feigelson, Inorganic Materials, Vol. 42, No. 9, 2006, pp. 971–975.

High-pressure and high-temperature annealing affects on CVD homoepitaxial diamond films. K. Ueda [kueda@will.brl.ntt.co.jp], M. Kasu, A. Tallaire, and T. Makimoto, Diamond and Related Materials, Vol. 15, 2006, pp. 1789–1791.

Inclusions of metal-solvent and color in B-containing monocrystals of artificial diamond. A. I. Chepurov, E. I. Zhimulev, I. K. Federov, and V. M. Sonin, Proceedings of the Russian Mineralogical Society, Vol. 6, No. 135, 2006, pp. 97–101 [in Russian with English abstract].

The nature of Ti-rich inclusions responsible for asterism in Verneuil-grown corundum. C. Viti [vatic@unisi.it] and M. Ferrari, European Journal of Mineralogy, Vol. 18, No. 6, 2006, pp. 823–834.

The state of the art in the growth of diamond crystals and films. V. P. Varnin, V. A. Laptev, and V. G. Ralchenko [ralchenko@nsc.gpi.ru], Inorganic Materials, Vol. 42, Supp. 1, 2006, pp. S1–S18.

TREATMENTS
High pressure–high temperature (HPHT) natural diamond enhancement. M. A. Viktorov and M. B. Kopchikov, Moscow University Geology Bulletin, Vol. 61, No. 3, 2006, pp. 61–68.

Optical study of the annealing behaviour of the 3107 cm-1 defect in natural diamonds. F. De Weerdt [fdw@hrd.be] and A. T. Collins, Diamond and Related Materials, Vol. 15, 2006, pp. 593–596.

Study on the wax enhancement for the unearthed jade wares by FTIR technique from ancient tombs of Shang-Zhou period in Henglingshan site of Boluo County, Guangdong Province. Z. Qiu, M. Wu, and Q. Wei, Spectroscopy and Spectral Analysis, Vol. 26, No. 6, 2006, pp. 1042–1045 [in Chinese with English abstract].

MISCELLANEOUS
Angola: The new blood diamonds. R. Marques, address to the School of Oriental and African Studies, London University, Nov. 28, 2006, www.business-humanrights.org/Links/Repository/606731.

A cartel’s response to cheating: An empirical investigation of the De Beers diamond empire. D. J. Bergenstock [bergebst@muhlberg.edu], M. E. Deily, and L. W. Taylor, Southern Economic Journal, Vol. 73, No. 1, 2006, pp. 173–189.

Conflict diamonds and the Kimberley process: Mission accomplished or mission impossible? T. Hughes. South African Journal of International Affairs, Vol. 13, No. 2, 2006, pp. 115–130.

Diamonds by Linares, Gemesis may cut De Beers, Rio Tinto sales. D. Rossingh, Bloomberg.com, June 11, 2007, www.bloomberg.com.