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Winter 2006, Volume 42, Issue 4


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Gemological Abstracts


COLORED STONES AND ORGANIC MATERIALS

Application of geochemical ratios for delineating gem-bearing areas in high grade metamorphic terrains. P. N. Ranasinghe [nalakaranasinghe@hotmail.com], C. B. Dissanayake, and M. S. Rupasinghe, Applied Geochemistry, Vol. 20, 2005, pp. 1489–1495.

The content and distribution of microelements in Pinctada martensii and its manual nucleus inserted pearl layer. F. Huang, C. Deng, W. Song, and H. Huang, Guangdong Weiliang Yuansu Kexue [Science of Trace Elements, Guangdong], Vol. 12, No. 10, 2005, pp. 38–41 [in Chinese with English abstract].

Influence of supergene conditions upon quality of fossil ivory. A. N. Smirnov, Proceedings of the Russian Mineralogical Society, Vol. 135, No. 1, 2006, pp. 130–139 [in Russian with English abstract].

A miscellany of organics. G. Brown [austgem@gem.org.au], Australian Gemmologist, Vol. 22, No. 6, 2005, pp. 264–268.

A new geochemical tool to separate basaltic from metamorphic blue sapphires: the Ga/Mg ratio. J.-J. Peucat [peucat@univ-rennes1.fr], P. Ruffault, E. Fritsch, C. Simonet, M. Bouhnik-Le Coz, and B. Lasnier, Revue de Gemmologie a.f.g., No. 153, 2005, pp. 8–12 [in French with English abstract].

The origin of asterism in almandine-pyrope garnets from Idaho. M. J.-F. Guinel and M. G. Norton, Journal of Materials Science, Vol. 41, No. 3, 2006, pp. 719–725.

A spectroscopic index for estimating the age of amber. H. Kimura, Y. Tsukada, H. Mita, Y. Yamamoto, R. Chujo, and T. Yukawa, Bulletin of the Chemical Society of Japan, Vol. 79, No. 3, 2006, pp. 451–453.

Tsavorite: Une pierre africaine [Tsavorite: An African gem]. V. Pardieu, Revue de Gemmologie a.f.g., No. 154, 2005, pp. 8–11 [in French].

DIAMONDS

The “amber centres” and their relation to the brown colour in diamond. L. Massi [laurent.massi@cnrs-imn.fr], E. Fritsch, A. T. Collins, T. Hainschwang, and F. Notari, Diamond and Related Materials, Vol. 14, 2005, pp. 1623–1629.

Diamonds from the desert. M. Forrest, Materials World, March 2006, pp. 27–29.

Geodynamic controls on diamond deposits: Implications for Australian occurrences. C. J. O’Neill [cjoniell@rice.edu], L. Moresi, and A. L. Jaques, Tectonophysics, Vol. 404, 2005, pp. 217–236.

Paragenesis of inclusions in diamonds from the Botoubinskaya kimberlite pipe, Nakyn field, Yakutia. Z. V. Spetsius [spetsius@yna.alrosa-mir.ru], S. I. Mityukhin, A. S. Ivanov, and S. V. Banzeruk, Doklady Earth Sciences, Vol. 403, 2005, pp. 808–811.

The re-engineering of the ground handling system at Cullinan diamond mine. A. W. Bester, Journal of the South African Institute of Mining and Metallurgy, Vol. 105, No. 3, 2005, pp. 149–162.

A venture into the interior of natural diamond: Genetic information and implications for the gem industry (Part I: The main types of internal growth structures). G. P. Bulanova, A. V. Varshavsky, and V. A. Kotegov, Journal of Gemmology, Vol. 29, No. 7/8, 2005, pp. 377–386.

Water-related IR characteristics in natural fibrous diamonds. D. A. Zedgenizov, A. A. Shiryaev [shiryaev@ns.crys.ras.ru], V. S. Shatsky, and H. Kagi, Mineralogical Magazine, Vol. 70, No. 2, 2006, pp. 219–229.

GEM LOCALITIES

Emerald mining in Afghanistan. A. Kalukiewcz, Mining Engineering, Vol. 57, No. 9, 2005, pp. 17–21.

Discovery of corundum and its mineralogical properties in north Jiangsu. Y. Sun and F. Yan, Jiangsu Geology, Vol. 30, No. 2, 2006, pp. 87–88 [in Chinese with English abstract].

Exploration et exploitation des gemmes en Australie [Exploration and mining of gems in Australia]. F. L. Sutherland, Revue de Gemmologie a.f.g., No. 155, 2006, pp. 13–19 [in French].

Kosmochlor and chromian jadeite aggregates from the Myanmar jadeitite area. G. H. Shi [shiguanghai@263.net.cn], B. Stöckhert, and W. Y. Cui, Mineralogical Magazine, Vol. 69, No. 6, 2005, pp. 1059–1075.

New discovery in Sri Lanka—Green, semi-translucent to opaque, opal. S. I. Glaser, Midlands Focus, No. 8, 2006, pp. 25–26.

Oxygen isotope studies on placer sapphire and ruby in the Chanthaburi-Trat alkali basaltic gemfield, Thailand. T.-F. Yui [tfyui@earth.sinica.edu.tw], C.-M. Wu, P. Limtrakun, W. Sricharn, and A. Boonsoong, Lithos, Vol. 86, 2006, pp. 197–211.

The sapphire and spinel deposit of An Phu, Luc Yen mining district, Yenbai Province, Vietnam. D. Blauwet, Mineralogical Record, Vol. 37, No. 3, 2006, pp. 225–238.

A SIMS study of the transition elemental distribution between bands in banded Australian sedimentary opal from the Lightning Ridge locality. P. S. Thomas [paulthomas@uts.edu.au], L. D. Brown, A. S. Ray, and K. E. Prince, Neues Jahrbuch für Mineralogie, Abhandlungen, Vol. 182, No. 2, 2006, pp. 193–199.

INSTRUMENTS AND TECHNIQUES

Attenuated total reflection Fourier transform infrared spectra of faceted diamonds. P. Thongnopkun and S. Ekgasit [sanong.e@chula.ac.th], Analytica Chimica Acta, Vol. 576, 2006, pp. 130–135.

Transflectance spectra of faceted diamonds acquired by infrared microscopy. S. Ekgasit [sanong.e@chula.ac.th] and P. Thongnopkun, Applied Spectroscopy, Vol. 59, No. 9, 2005, pp. 1160–1165.

Diffraction enhanced imaging: A new X-ray method for detecting internal pearl structures. J. Schlüter [jochen.schlueter@uni-hamburg.de], M. Lohmann, J. Metge, and B. Reime, Journal of Gemmology, Vol. 29, No. 7/8, 2005, pp. 401–406.

Filtres colorés Hanneman pour pierres gemmes [Hanneman color filters for gemstones]. L. Gautron [3genvt@wanadoo.fr], Revue de Gemmologie a.f.g., No. 153, 2005, pp. 20–24 [in French].

Possibilities of X-ray non-destructive diagnostics of turquoise in jewellery. M. V. Cherednik and E. A. Goilo, Mineralogical Museums, Abstracts of the International Symposium on Mineralogical Museums, St. Petersburg, V. G. Krivovichev, Ed., St. Petersburg State University, 2005, p. 356 [in Russian]

Synchrotron micro-X-ray fluorescence analysis of natural diamonds: First steps in identification of mineral inclusions in situ. H. Sitepu, M. G. Kopylova [mkopylov@eos.ubc.ca], D. H. Quirt, J. N. Cutler, and T. G. Kotzer, American Mineralogist, Vol. 90, No. 11–12, 2005, pp. 1740–1747.

SYNTHETICS AND SIMULANTS

As-grown, green synthetic diamonds.C. M. Breeding, J. E. Shigley, and A. H. Shen, Journal of Gemmology, Vol. 29, No. 7/8, 2005, pp. 387–394.

Development of high-quality large-size synthetic diamond crystals. H. Sumiya, N. Toda, and S. Satoh, SEI Technical Review, No. 60, 2005, pp. 10–15.

Distinguishing natural from synthetic amethyst: The presence and shape of the 3595 cm-1 peak. S. Karampelas [steka@physics.auth.gr], E. Fritsch, T. Zorba, S. M. Parakevopoulos, and S. Sklavanounos, Mineralogy and Petrology, Vol. 85, 2005, pp. 45–52.

Grow[th of] large high-quality diamonds with different seed surfaces. C.-Y. Zang, X.-P. Jia [jiaxp@jlu.edu.cn], H.-A. Ma, S.-S. Li, Y. Tian, and H.-Y. Xiao, Chinese Physics Letters, Vol. 23, No. 1, 2006, pp. 214–216.

High pressure–high temperature growth of diamond crystals using split sphere apparatus. R. Abbaschian [rabba@eng.ucr.edu], H. Zhu, and C. Clarke, Diamond and Related Materials, Vol. 14, No. 11–12, 2005, pp. 1916–1919.

Prospects for large single crystal CVD diamonds. S. S. Ho, C. S. Van, Z. Liu, H. K. Mao, and R. J. Hemley, Industrial Diamond Review, Vol. 66, No. 1, 2006, pp. 28–32.

Silica and alumina transfer in supercritical aqueous fluids and growing of topaz monocrystals in them. V. S. Balitsky, D. V. Balitsky, S. D. Balitsky, C. Aurisicchio, and M. A. Roma, Geochemistry International, Vol. 44, No. 2, 2006, pp. 175–181.

Synthesis of precious opal in a hydrothermal solution. V. V. Potapov and D. V. Kamashev, Glass Physics and Chemistry, Vol. 32, No. 1, 2006, pp. 89–98.

TREATMENTS

Change in cathodoluminescence spectra and images of type II high-pressure synthetic diamond produced with high pressure and temperature treatment. H. Kanda [kanda.hisao@nims.go.jp], A. Ahmadjan, and H. Kitawaki, Diamond and Related Materials, Vol. 14, No. 11–12, 2005, pp. 1928–1931.

Proton irradiation of natural and synthetic diamonds. M. A. Viktorov and M. B. Kopchikov, Moscow University Geology Bulletin, Vol. 60, No. 5, 2005, pp. 62–75.

MISCELLANEOUS

Deadly dust: The silicosis epidemic among Guangdong jewelry workers and the defects of China’s occupational illnesses prevention and compensation system. China Labor Bulletin, CLB Research Series No. 1, December 2005, 47 pp., www.clb.org.hk/fs/view/downloadables/Deadly_Dust_Dec2005.pdf.

Green dreams. C. Zarin, New Yorker, Nov. 21, 2005, pp. 76–83.

How community institutions create economic advantage: Jewish diamond merchants in New York. B. Richman, Law & Social Inquiry, Vol. 31, No. 2, 2006, pp. 383–420.

It’s a deal. O. Galibert, Luxx Jewellery, 2006–2007, pp. 136–140.

Microhardness, toughness, and modulus of Mohs scale minerals. M. E. Broz [broz@cems.umn.edu], R. F. Cook, and D. L. Whitney, American Mineralogist, Vol. 91, 2006, pp. 135–142.

The Path of Stones. B. Bilger, New Yorker, Oct. 2, 2006, pp. 66–79.

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