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

• 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

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.