- mindat.org min-32585.htmlThis page provides mineralogical data about Lapis niger ex quo conflatur candidum plumbum.
- kk.wikibooks.org wiki/Сурет:Lapis-niger.jpgDetail from the Lapis Niger from Forum Romanum, one of the oldest known examples of writing in the Latin language.
- eli5.gg Lapis NigerPeople thought that by coming to Lapis Niger, they could connect with the gods and even with the spirit of Romulus himself.
- ru.wikibrief.org wiki/Lapis_NigerForum Romanum: Rostra, Curia, Decennalia Base и Lapis Niger.
- dictionary_of_ancient.academic.ru 48/Lapis_NigerLapis Niger — Der Lapis Niger (lateinisch „schwarzer Stein“) ist eine quadratische Fläche aus schwarzen Marmorplatten auf dem Forum Romanum in Rom.
- understandingrome.substack.com p/a-podcast-about-…The Lapis Niger, and the sacred area it marks, is under the low, modern protective shelter with the sloping roof which has been in place for perhaps a decade so far.
- wikimapia.org 3867208/Lapis-NigerThe Lapis Niger (Latin, "Black Stone") is an ancient shrine in the Roman Forum.