Baveno twin law

Baveno twin law

[bə′vē·nō ‚twin ‚lȯ]
(crystallography)
An uncommon twin law applicable in feldspar, in which the twin plane and composition surface are (021); a Baveno twin usually consists of two individuals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.