Affiliation:
1. Department of the Geophysical Sciences, University of Chicago, Chicago, Illinois
Abstract
The crystal structure of fresnoite, Ba
2
(TiO)[Si
2
O
7
], consists of [Si
2
O
7
]
6-
double groups and titanium-centered square pyramids linked to form flat sheets. Intercalated between these sheets are Ba
2+
ions in highly distorted pentagonal antiprisms. The structure of fresnoite is related to that of melilite, (Ca,Na)
2
(Mg,Al)[Si
2
O
7
].
Publisher
American Association for the Advancement of Science (AAAS)
Reference4 articles.
1. ALFORS, J.T., 7 NEW BARIUM MINERALS FROM EASTERN FRESNO COUNTY CALIFORNIA, AMERICAN MINERALOGIST 50: 314 (1965).
2. SMITH, J.V., SECOND REVIEW OF A1-O AND SI-O TETRAHEDRAL DISTANCES, ACTA CRYSTALLOGRAPHICA 16: 801 (1963).
3. SMITH, J.V., REEXAMINATION OF THE CRYSTAL STRUCTURE OF MELILITE, AMERICAN MINERALOGIST 38: 643 (1953).
4. Woodrow, P. J., Nature 204:375 (1964).
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144 articles.
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