Morphological classification
Hahn, Th. and
Klapper, H.,
International Tables for Crystallography
(2013).
Vol. D,
Section 3.3.3.1,
p.
[ doi:10.1107/97809553602060000917 ]
]. Examples are shown in Fig. 3.3.6.3 for gypsum, in Fig. 3.3.6.7 for
calcite and in Fig. 3.3.6.8 (a) for a spinel (111) twin. In most cases, contact twins are growth twins .
(ii) Polysynthetic (lamellar) twins are formed ...
Morphological classification, simple and multiple twinning
Hahn, Th. and
Klapper, H.,
International Tables for Crystallography
(2013).
Vol. D,
Section 3.3.3,
p.
[ doi:10.1107/97809553602060000917 ]
by some morphological aspects of twinning.
Simple twins are aggregates that consist of domains of only two orientation states, irrespective of the number, size and shape of the individual domains, Fig.
3.3.3.1 (b). Thus, only ...
