Crystal structure of the zeolite mutinaite, the natural analog of ZSM-5

We describe the crystal structure of the high-silica zeolite mutinaite, recently found at Mt. Adamson (Northern Victoria Land, Antarctica). Mutinaite is the natural counterpart of the synthetic zeolite ZSM-5. The new mineral, (Na2.76K0.11Mg0.21Ca3.78) (Al11.20 Si84.91) · 60 H2O H2O, is orthorhombic,...

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Bibliographic Details
Main Authors: VEZZALINI, Maria Giovanna, S. Quartieri, GALLI, Ermanno, A. Alberti, G. Cruciani, A. Kvick
Other Authors: Vezzalini, Maria Giovanna, S., Quartieri, Galli, Ermanno, A., Alberti, G., Cruciani, A., Kvick
Format: Article in Journal/Newspaper
Language:English
Published: 1997
Subjects:
zeolite
mutinaite
ZSM5
structure
sychrotron radiation XRD
Adamson
Victoria Land
Antarc*
Antarctica
Online Access:http://hdl.handle.net/11380/736680
Description
Summary:We describe the crystal structure of the high-silica zeolite mutinaite, recently found at Mt. Adamson (Northern Victoria Land, Antarctica). Mutinaite is the natural counterpart of the synthetic zeolite ZSM-5. The new mineral, (Na2.76K0.11Mg0.21Ca3.78) (Al11.20 Si84.91) · 60 H2O H2O, is orthorhombic, space group Pnma, with a = 20.201(2), b = 19.991(2), and c = 13.469(2) Å. A single-crystal X-ray diffraction expt. was performed at the synchrotron radiation source ESRF (Grenoble). No Si-Al order in the framework has been detected. Large distances between ions in the channels and framework oxygens suggest weak interactions between the framework and extraframework species.

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