Earthy–Cryptocrystalline vivianite from the trepel deposits near the Suvodol village, Bitola, Macedonia

  • Simeon Jancev
  • Blagoj Pavlovski
  • Ljupco Petreski

Abstract

Within the frame of the trepel deposits (Fig. 1) near Suvodol village, Bitola city it was discovered(Lj. Petreski) an earthy-cryptocrystalline vivianite occurrence. The examined vivianite sample was confirmed byX-ray powder diffraction, chemical, SEM, DTA/TG, infra-red analyses. The treated vivianite sample actually representsa typical earthy-cryptocrystalline variety (Fig. 2) with a peculiar progressive oxidation state of Fe2+ to Fe3+(FeO/Fe2O3 contents nearly 1:1). X-ray powder diffraction, DTA/TG-data are in quite good concordance with literaturedata.

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References

Marković-Marijanović J., 1956: Vivianit vo kvartarnite sedimenti na Bitolskiot basen. Trudovi na Geoloshkiot Zavod na N.R. Makedonija, Fasc. 5, Skopje.

Stojanov R., 1958: Prethodni rezultati od geološkite i petrografskite istražuvanja na Selečka planina. Trudovi na Geološkiot zavod na N. R. Makedonija, Fasc. 6, Skopje.

Sameshima, Henderson G. S., Black P. M., Rodgers K. A., 1985: X-ray diffraction studies of vivianite, meta-vivianite and baricite. Min. Magazine, Vol. 49, p-p 81–85, March.

Pratt A. R., 1997: Vivianite auto-oxidation. Phys. Chem. Minerals; Springer–Verlag, 25, 24–27.

R. L. Frost, W. Martens, P. A. Williams and J. T. Kloprogge, 2002: Raman and infrared spectroscopic study of the vivianite – group phosphates vivianite, baricite and bobierrite.

Min. Magazine, 66, 6, 1063–1073, December.

Ray L. Frost; Matt. Weier, Wayde Martens, J. Theo Kloprogge, Zhe Ding, 2003: Dehydration of synthetic and natural vivianite. Thermochimica Acta, 401, 121–130.

Published
2013-04-22
How to Cite
Jancev, S., Pavlovski, B., & Petreski, L. (2013). Earthy–Cryptocrystalline vivianite from the trepel deposits near the Suvodol village, Bitola, Macedonia. Geologica Macedonica, 25(1), pp.61–65. Retrieved from https://js.ugd.edu.mk/index.php/GEOLMAC/article/view/270