A Case of Epitaxic Replacement

Ivan Kostov
Dept. of Mineralogy, University of Sofia

Summary: Quartz from a granite pegmatite near Kalkovo, Bulgaria, has undergone partial replacement by biotite along cracks parallel to (101¯0); the biotite is in regular orientation relative to the quartz, and appears to constitute an instance of epitaxic replacement, defined as a replacement in which the replacing mineral develops in a regular, structurally controlled orientation relative to the mineral replaced.

Mineralogical Magazine; December 1956 v. 31; no. 235; p. 333-338; DOI: 10.1180/minmag.1956.031.235.09
© 1956, The Mineralogical Society
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