Brit af admin at Jan 6, 2017 Photo/Eyþór Ingi Jónsson Yesterday, numerous nacreous clouds could be seen in the twilight hours in Northern Iceland. Such clouds are generally spotted in midwinter, at around sunset or sunrise when skies are clear. Mbl.is received several photographs from readers in Akureyri and Húsavík of these rare and beautiful cloud formations. Nacreous clouds, also known as polar stratospheric clouds or mother-of-pearl clouds are formed by ice…