Deformation Twins in Hornblende

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Science  10 Jul 1970:
Vol. 169, Issue 3941, pp. 173-175
DOI: 10.1126/science.169.3941.173


Hornblende deformation twins with twin planes parallel to (¯101) are produced experimentally in single crystals by compression parallel to the c axis. Twinning occurs at confining pressures from 5 to 15 kilobars and temperatures from 400° to 600°C (strain rate, 10-5 per second).

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