I would like to discuss the creation of one or more tags for amorphous solids, glasses and quasicrystals.

There are many question on the site which address specifically glasses and the glass transition, for example this one and this one and this one.

Others are about amorphous solids in general, like this one, this one and this one.

Finally, other questions are about quasicrystals, like this one and this one.

We have a tag for spin glasses, but not a tag for glasses. I find this to be pretty absurd.

I recently proposed the tag amorphous-solids, but I'm wondering wether it could be useful to create the tag glasses (or glass) since someone asking a question about glasses will probably try to type "glass" instead of "amorphous".

Also, it could be useful to create a quasicrystals tag.


Since the response has been mainly positive (or no one seriously objected, anyway...) I will create the glass tag. As for the quasicrystals tag, I still haven't decided what to do.

  • $\begingroup$ Quasicrystals are neither amorphous nor glasses. While all glasses are amorphous solids, not all amorphous solids are glasses (although that may well be a sub-field dependent distinction). $\endgroup$
    – Jon Custer
    Commented Nov 21, 2016 at 15:04
  • $\begingroup$ @JonCuster You are right about quasicrystals; I reformulated the question in order to make it conceptually correct. You are also correct about the rest, but I knew that already :-) Thanks. $\endgroup$
    – valerio
    Commented Nov 21, 2016 at 19:10
  • $\begingroup$ I like the amorphous solids because it would allow the occasional polymer question to be tagged as well. I see your point about the glasses stuff too, though. Is there a disadvantage in creating both tags? $\endgroup$
    – Sanya
    Commented Nov 21, 2016 at 21:52
  • $\begingroup$ @Sanya I would prefer not to create too many new tags if not necessary. But I think that the "glass"/"glasses" tag is needed. $\endgroup$
    – valerio
    Commented Nov 21, 2016 at 22:10
  • $\begingroup$ Hi valerio92, would you by any chance be willing to act as, say, a custodian/protector for these tags, i.e. when new (& old) questions appear, which need to be tagged appropriately? $\endgroup$
    – Qmechanic Mod
    Commented Nov 21, 2016 at 23:28
  • $\begingroup$ @Qmechanic I would be glad to do it! Actually, I already started to do so with the "amorphous-solids" tag $\endgroup$
    – valerio
    Commented Nov 22, 2016 at 5:44
  • 1
    $\begingroup$ I would say go on the quasicrystals as well, particularly if you can unify the existing questions under it. $\endgroup$ Commented Nov 23, 2016 at 11:10
  • $\begingroup$ @EmilioPisanty Then I think I'll proceed with "quasicrystals" too. $\endgroup$
    – valerio
    Commented Nov 23, 2016 at 11:20


You must log in to answer this question.

Browse other questions tagged .