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Tullis J. Quartz: preferred orientation in rocks produced by dauphine twinning. Science. 1970;168(3937):1342-4doi: 10.1126/science.168.3937.1342.
Tullis, J. (1970). Quartz: preferred orientation in rocks produced by dauphine twinning. Science (New York, N.Y.), 168(3937), 1342-4. https://doi.org/10.1126/science.168.3937.1342
Tullis, J. "Quartz: preferred orientation in rocks produced by dauphine twinning." Science (New York, N.Y.) vol. 168,3937 (1970): 1342-4. doi: https://doi.org/10.1126/science.168.3937.1342
Tullis J. Quartz: preferred orientation in rocks produced by dauphine twinning. Science. 1970 Jun 12;168(3937):1342-4. doi: 10.1126/science.168.3937.1342. PMID: 17731042.
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Science. 1970 Jun 12;168(3937):1342-4. doi: 10.1126/science.168.3937.1342.

Quartz: preferred orientation in rocks produced by dauphine twinning.

Science (New York, N.Y.)

J Tullis

PMID: 17731042 DOI: 10.1126/science.168.3937.1342

Abstract

X-ray analyses of quartz aggregates deformed in the laboratory andin nature show a striking difference in the preferred orientation of the positive and negative trigonal forms. These observations may be accounted for by mechanically induced Dauphiné twinning. This orienting mechanism is unusual in that it requires no permanent strain.

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