IRON-RICH BEIDELLITE IN THE FINE FRACTION OF STEBNO BENTONITE

In: Geologica Carpathica Clays, vol. 1, no. 2

Blahoslav Cicel - Peter Komadel - Stanislav Lego - Jana Madejova - Ludmila Vlckova

Detaily:

Rok, strany: 1992, 121 - 124

O článku:

The < 2 µm fraction separated from Stebno (near Usti nad Labem, Czecho-Slovakia) bentonite contains 17.59 % Fe₂0₃. A mineralogical and crystallochemical study using X-ray diffraction, thermal analysis, infrared and Mössbauer spectroscopies and acid dissolution showed that the main mineral is an iron-rich beidellite (Fe-beidellite) with an unusually low dehydroxylation temperature (510 °C),having about equal amounts of aluminium and iron in the octahedral sites. Minor amounts of anatase and kaolinite (both below 3 %) were also identified in this fraction. About 79 % of total iron present in the sample is bound in smectite and the remaining 21 % is in goethite.

Ako citovať:

ISO 690:

Cicel, B., Komadel, P., Lego, S., Madejova, J., Vlckova, L. 1992. IRON-RICH BEIDELLITE IN THE FINE FRACTION OF STEBNO BENTONITE. In Geologica Carpathica Clays, vol. 1, no.2, pp. 121-124.

APA:

Cicel, B., Komadel, P., Lego, S., Madejova, J., Vlckova, L. (1992). IRON-RICH BEIDELLITE IN THE FINE FRACTION OF STEBNO BENTONITE. Geologica Carpathica Clays, 1(2), 121-124.