i have to admit i cannot discern the holes as the image on my computer screen looks very dark -to me they might well be dark red with an even sprinkling of black crumbs, perhaps another example imitating Lava beads?
i have a black necklace with similar textured beads but in graduated sizes which i believe is Czech 1930-40s
Paula can you show or describe the holes? if they are European, not Indian the they will be worth a lot more...