Articles | Volume 35, issue 3
https://doi.org/10.5194/ejm-35-333-2023
https://doi.org/10.5194/ejm-35-333-2023
Research article
 | 
24 May 2023
Research article |  | 24 May 2023

Pseudo-cubic trigonal pyrite from the Madan Pb–Zn ore field (Rhodope Massif, Bulgaria): morphology and twinning

Yves Moëlo

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Cited articles

Bayliss, P.: Crystal chemistry and crystallography of some minerals within the pyrite group, Amer. Mineral., 74, 1168–1176, 1989. 
Bonev, I. I., Reiche, M., and Marinov, M.: Morphology, perfection and growth of natural pyrite whiskers and thin platelets, Phys. Chem. Minerals, 12, 223–232, 1985. 
Gaubert, P.: Sur un cristal de pyrite, maclé suivant la loi des spinelles, Bull. Soc. fr. Minéral., 51, 211–212, 1928. 
Goldschmidt, V.: Pyrite, in Atlas der Kristallformen, vol. 6, Winter Edit., Heidelberg, 1920. 
Goldschmidt, V. and Nicol, W.: Spinellgesetz beim Pyrit und über Rangordnung der Zwillingsgesetze, Neues Jahr. Mineral., 2, 93–113, 1904. 
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Short summary
Pyrite crystals with rhombohedral morphology have been known for a long time and were considered up to now as curiosities. The morphological study of well-crystallized, centimeter-sized crystals, often twinned, from the Madan Pb–Zn ore field permitted us to define such a pyrite variety as a pseudo-cubic trigonal derivative of pyrite.
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