Valsan own quarries:

Argent
Limestone of an exclusive appearance, unique in its class.
Bruc
Grey limestone. Surprising in its warmth, uniformity and elegance.
Gris Catalan
Limestone of excellent technical qualities, suitable for all types of climate.

Montcau
Limestone with more than a 40% of quartz (SoiO2) in its chemical composition, with a very Little grain. It's relevant characteristic is its "greydish" neutral colour.
Oker
Warm sandstone which its tenuous veins makes it really special.
Padró
Limestone very crystalline, with a warm grey/brown tonality and frost resistance.

Rocafort
Very uniform and compact sandstone in a toasted beige colour.
Venetian Grey
Sandstone of a uniform warm blue-grey. Not always available.