Nordstrandite - a new occurrence from Hungary

Kovács-Pálffy Péter and Velledits Felicitász and Kónya Péter and Földvári Mária and Gálné Solymos Kamilla: Nordstrandite - a new occurrence from Hungary. In: Acta mineralogica-petrographica, (48). pp. 43-48. (2008)

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A new occurrence of nordstrandite was described from NE Hungary (Aggtelek-Rudabdnya Mts). This mineral appeared in red clayed matrix of conglomerates accumulated in dolines from Triassic platform limestone. It was investigated by X-ray diffractometry, thermal analyses, SEM-EDS. By X-ray analyses it was possible to separate the nordstrandite from other crystalline modifications of Al(OH)3. Nordstrandite appears as individual or radial crystal aggregates in voids (fissures or cavities). In our case the nordstrandite precipitated from amorphous Al(OH)3 gels, from the alkaline phreatic solutions, infiltrating along the fissures of the clayed matrix of conglomerates. Nordstrandite was most probably formed during Late Miocene-Pleistocene.

Item Type: Article
Heading title: Articles
Journal or Publication Title: Acta mineralogica-petrographica
Date: 2008
Volume: 48
ISSN: 0365-8066
Page Range: pp. 43-48
Language: English
Publisher: Department of Mineralogy, Geochemistry and Petrology, University of Szeged
Place of Publication: Szeged
Related URLs:
Uncontrolled Keywords: Földtan, Ásványtan, Kőzettan
Additional Information: Bibliogr.: 48. p. ; ill. ; összefoglalás angol nyelven
Subjects: 01. Natural sciences
01. Natural sciences > 01.05. Earth and related environmental sciences
Date Deposited: 2016. Oct. 17. 09:24
Last Modified: 2022. Aug. 26. 08:11

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