Calacatta Extra is a selection from the Calacatta Borghini and Calacatta Betolli quarries. These two quarries are next to one another and thus supply blocks that can be used to produce the Gold selection. The quarries are located in the Apuan Mountain range near Carrara, Italy. Calacatta Gold will have a creamy white background with light grey veins and a mix of gold. The distinctive characteristic that makes this marble unique is the black pencil veining between the white background and grey veining. There will also be black spots that look like mica on some tiles. Calacatta Gold may be used with the following slab colors, since they come from the same quarry: Calacatta Gold Extra, Calacatta Super Extra, Calacatta Borghini and Calacatta Crema. If you are using slab and tile on the same project, you will need to approve the color tone before installation. When installing white marble, you must use a white thinset. Using grey thinset will leave trowel lines and could stain the marble. This product will change from shipment to shipment; therefore, customer approval is required. Pin holes and stun marks are common in this marble. As a natural stone product, it is recommended that this be sealed to extend its longevity.