Nomidia

There's a photo of an interlaced hexagram with round edges in the Catalogue des Mosaiques Romaines et Paleochretiennes du musee du Louvre, Paris, 1978 by Francois Barette p. 32.
This hexagram is inside a medallion which is part of a mosaic pavement of 8X7 meters together with 35 other medallions found in Roman Nomidia.