Negro Marquina Is a compact and fine grained black rock. This marble is a recrystallized reef chalk with some calcite veins, on which some fossil remains can be seen. The Black Marquina can range form pitch black to black with plenty of white veins. Its classification (and also its capacity of being supplied and its price) depends on the homogeneity of tone of colour, the constant veining and the presence of mineral intrusions. Use Its suitable mainly for indoor flooring and cladding. In outdoor areas only for cladding small areas (shops, lower floors) or in antique finish. Shapes Negro Marquina is produced in slabs 2 & 3 cm for transformation in stairs, cut to size pieces.. and in standard sizes 60x60x2 cm (less used), 60x40x2 cm, 60x30x2 cm, 40x40x2 cm, 40x30x2 cm. In other thicknesses you can find tiles 30,5x30,5x1 cm (with bevel) for bathroom cladding. Finishes The stone can be sorted in polished, honed or antique finish principally.