Publications 1989

Kammerling R.C., Koivula J.I., Fritsch E. (1989) An unusual assembled "emerald" crystal from Brazil. Canadian Gemmologist, Vol. 10, No. 2, pp. 36-43.

Shigley J.E., Fritsch E. (1989) Irradiated diamond detectable by color zoning. (en japonais) Tokyo Diamonds, pp. 100 & 102.

Koivula J.I., Kammerling R.C., Fritsch E., Fryer C.W., Hargett D., Kane R.E. (1989) The characteristics and identification of filled diamonds. Gems & Gemology, Vol. 25, No. 2, pp. 68-83. Premier prix, Most valuable article of the year award, Gems & Gemology.

Fritsch E., Conner L., Koivula J.I. (1989) A preliminary gemological study of synthetic diamond thin films. Gems & Gemology, Vol. 25, No. 2, pp. 84-90.

Fritsch E., Shigley J.E. (1989) Contribution to the identification of treated colored diamonds: diamonds with peculiar color-zoned pavilions. Gems & Gemology, Vol. 25, No. 2, pp. 95-101.

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, pp. 159-164.

Woodruff R.E., Fritsch E. (1989) Blue pectolite from the Dominican Republic. Gems & Gemology, Vol. 25, No. 4, pp. 216-225.

Publications 1988

Fritsch E., Rossman G.R. (1988) An Update on Color in Gems. Part 2: Colors involving multiple atoms and color centers. Gems & Gemology, Vol. 24, No. 1, pp. 3-15.

Fritsch E., Rossman G.R. (1988) An Update on Colors in Gems. Part 3: Colors caused by band gaps and physical phenomena. Gems & Gemology, Vol. 24, No. 2, pp. 81-102.

Fritsch E., Shigley J.E., Stockton C.M., Koivula J.I. (1988) Detection of treatment in two unusual green diamonds. Gems & Gemology, Vol. 24, No. 3, pp. 165-168.

Fritsch E., Misiorowski E.B. (1988) Queen conch "Pearls": Rare gems from the Carribean Sea. Sea Frontiers, Vol. 34, No. 5, pp. 286-291.

Fritsch E., Koivula J.I. (1988) How to tell natural amethyst. Jewelers' Circular Keystone, October 1988, pp. 244-248.

Koivula J.I., Fritsch E., Fryer C. (1988) The gemmological characteristics of Inamori synthetic cat's eye alexandrite chrysoberyl. Journal of Gemmology, Vol. 21, No. 4, pp. 232-236.

Publications 1987

Fritsch E. (1987) Connaître les macles. Première partie. Monde & Minéraux, Vol. 77, pp. 16-19.

Fritsch E. (1987) Connaître les macles. Deuxième partie. Monde & Minéraux, Vol. 78, pp. 44-49.

Fritsch E., Koivula J.I. (1987) How to tell if that amethyst is natural. Jewelers’ Circular-Keystone, July 1987, pp. 323-324.

Fritsch E. (1987) A red diamond in New York. Christie's Review of the Season 1987, Mark Wrey and Susanna Spicer editors, Phaidon-Christie's, Oxford, pp. 282-283.

Shigley J.E., Fritsch E., Stockton C.M., Koivula J.M., Fryer C.W., Kane R.E. (1987) Les diamants synthétiques Sumitomo. Revue de Gemmologie a.f.g., Vol. 92, pp. 10-14.

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

Fritsch E., Rossman G.R. (1987) An update on color in gems. Part 1: Introduction and colors caused by dispersed metal ions. Gems and Gemology, Vol. 23, No. 3, pp. 126-139. Deuxième prix, Most valuable article of the year award, Gems & Gemology.

Shigley J.E., Fritsch E., Stockton C.M., Koivula J.I., Fryer C.W., Kane R.E., Hargett D.R., Welch C.W. (1987) The gemological properties of the De Beers gem-quality synthetic diamonds. Gems and Gemology, Vol. 23, No.4, pp.187-206.

Fritsch E., Babonneau F., Sanchez C., Calas G. (1987) Vanadium incorporation in silica glasses. Journal of Non-Crystalline Solids, Vol. 92, pp. 282-294.

Fritsch E., Misiorowski E.B. (1987) The history and gemology of the Queen Conch « pearls ». Gems and Gemology, Vol. 23, No. 4, pp. 208-221.

Publications 1986

Shigley J.E., Fritsch E., Stockton C.M., Koivula J.I., Fryer C.W., Kane R.E. (1986) The gemological properties of the Sumitomo gem-quality synthetic yellow diamonds. Gems and Gemology, Vol. 22, No. 4, pp. 192-208.

Publications 1985

Fritsch E. (1985) La couleur des minéraux et des gemmes. Première partie: Des tribulations d'un électron à l'intérieur d'un atome isolé. Monde & Minéraux, Vol. 67, pp. 20-25.

Fritsch E. (1985) La couleur des minéraux et des gemmes, deuxième partie. Monde & Minéraux, Vol. 69, pp. 12-17.

Fritsch E. (1985) La couleur des minéraux et des gemmes; Des couleurs du diamant aux étoiles du saphir. Monde & Minéraux, Vol. 70, pp. 12-22.

Fritsch E., Calas G. (1985) Thermal darkening of silica glass : a spectroscopic study. Journal of Non-Crystalline Solids, Vol. 72, pp. 175-179.

Bianconi A., Fritsch E., Calas G., Petiau J. (1985) X-ray absorption near-edge structure of 3d transition elements in tetrahedral coordination : the effect of bond length variation. Physical Review B., Vol. 32-6, pp. 4292-4296.

Marcelli A., Davoli I., Bianconi A., Garcia J., Gargano A., Natoli C.R., Benfatto M., Chiarada P., Fanfoni M., Fritsch E., Calas G., Petiau J. (1985) Local structure in SiO2 glasses by oxygen K-edge XANES. Journal de Physique Colloques, C8, Vol. 46, pp. 107-112.

Publications 1984

Fritsch E. (1984) Une exception: les macles. Monde & Minéraux, Vol. 61, pp. 4-7.

Informations supplémentaires