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Alexandrite

Tsarstone collectors guide


Cyclic twins

Cyclic twins
Repeated twining that tends to produce circular forms according to the same twin law but with the twin axis or twin planes, such as chrysoberyl or aragonite crystals having a pseudohexagonal symmetry.
Bibliographic details
Page title Definition of Cyclic twins
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 04:48 UTC
Date accessed 09 April 2026 07:57 UTC
Permanent link http://w.alexandrite.net/viewpage.html?id=GG-088-00012
AMA style
David Weinberg. "Definition of Cyclic twins". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 04:48 UTC. Available at: http://w.alexandrite.net/viewpage.html?id=GG-088-00012. Accessed April 09, 2026.
APA style
"Definition of Cyclic twins". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 07:57, April 09, 2026, from http://w.alexandrite.net/viewpage.html?id=GG-088-00012.
Bluebook style
"Definition of Cyclic twins", http://w.alexandrite.net/viewpage.html?id=GG-088-00012 (last visited April 09, 2026).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Definition of Cyclic twins", http://w.alexandrite.net/viewpage.html?id=GG-088-00012 (Repeated twining that tends to produce circular forms according to the same twin law but with the twin axis or twin planes, such as chrysoberyl or aragonite crystals having a pseudohexagonal symmetry.) (as of Apr. 09, 2026, 07:57 GMT).
CBE/CSE style
David Weinberg. "Definition of Cyclic twins". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 04:48 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 04:48 UTC [cited 2026 Apr 09]. Available from: http://w.alexandrite.net/viewpage.html?id=GG-088-00012.
Chicago style
David Weinberg, "Definition of Cyclic twins", http://w.alexandrite.net/viewpage.html?id=GG-088-00012, (accessed April 09, 2026).
MLA style
"Definition of Cyclic twins". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 04:48 UTC. 09 Apr 2026 http://w.alexandrite.net/viewpage.html?id=GG-088-00012
MHRA style
David Weinberg, "Definition of Cyclic twins", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 04:48 UTC, http://w.alexandrite.net/viewpage.html?id=GG-088-00012 [accessed 09 April 2026].
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