Eponymous Nero Marquina is a splendid marble, known for its tight structure, deep black coloring and scattered white veining. Considered one of the most important economic exports of the bucolic Markina municipality in Álava, (and in the world of stone), this material polished is a dark, lustrous abyss crackling with dazzling bolts of white is transformed into an intensely dark carbon with mellow white veining when honed.