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@Daniele Pugliesi: please would you review the remaining contents, and prune them further if appropriate? I cut them down from 55 to 24 before processing the renaming. – FayenaticLondon 20:34, 18 May 2014 (UTC)Reply
Please take a look to the number of results in Google Books: 260.000 for "Granular material" and just 47 results for "Granularity of material". Are you still thinking that it was a good idea to move the category? I don't think so, and sorry, but I really I don't know how to "prune" it now, because I think there are no valid criteria for this action. The new category name is simply meaningless! At this conditions, I prefer you delete the category. However I really don't understand your decision, really! --Daniele Pugliesi (talk) 23:05, 19 May 2014 (UTC)Reply