PS: For a microscopically visible example in proteins, see the lovely cubic insulin interpenetrating non-merohedral twin crystallized by Madhumati Sevvana (Fig. 11a; thankfully open-access article):
Madhumati Sevvana, Michael Ruf, Isabel Uson, George M. Sheldrick and Regine Herbst-Irmer. Non-merohedral twinning: from minerals to proteins. Acta Cryst. (2019). D75, 1040–1050 <https://journals.iucr.org/d/issues/2019/12/00/rr5182/rr5182.pdf>. Best wishes, Navdeep --- Dr. Navdeep Singh Sidhu https://scholar.google.de/citations?user=ZqU1AE0AAAAJ --- --- On 17.03.21 11:12, Ana Luísa Moreira de Carvalho wrote: > Just a short note on this: I often see colleagues using the word > “twinning" when referring to a crystal that is actually multiple (not > single). > > I think much confusion arises from this. For me, a twin crystal is the > one that looks single under the microscope and only intensity statistics > reveal that the diffraction comes from more than one crystal. ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
