Spanish Black Marble, also known as Nero Marquina, is a distinguished natural stone with a rich history and a set of unique characteristics. Quarried in Aulestia o Murélaga (Aulesti), Vizcaya province, País Vasco, Spain, this marble is renowned for its fine and compact grain, predominantly black background, and striking white veins.

Coloring and Veining: Spanish Black Marble features a predominantly black background, providing a sophisticated and timeless aesthetic. The white veins, which can be abundant, traverse the surface, creating a captivating contrast and adding a touch of elegance to the overall appearance.

Fine and Compact Grain: The fine and compact grain structure contributes to a smooth and polished surface, enhancing the marble's overall appeal.

Contrasting Veins: The prominent white veins against the black background create a distinctive and visually appealing pattern, making it a sought-after choice for various applications.

Maintenance: For proper maintenance, it is recommended to clean Spanish Black Marble with a mild, pH-balanced stone cleaner. Avoid using abrasive or acidic cleaners to preserve the surface integrity and finish.

Durability: This marble exhibits durability suitable for a range of applications. While marble is generally softer than granite, proper care and maintenance can ensure its longevity and resilience in various settings.

Usage:

Spanish Black Marble is versatile and can be employed for diverse applications, including but not limited to:

Countertops: Its elegant appearance makes it a popular choice for kitchen and bathroom countertops.

Flooring: The fine grain and contrasting veins add sophistication to flooring applications.

Wall Cladding: Spanish Black Marble can be used for interior and exterior wall cladding, creating visually striking spaces.

Decorative Elements: Its aesthetic qualities make it suitable for decorative elements such as fireplace surrounds and accent pieces.

In summary, Spanish Black Marble, also known as Nero Marquina, is a refined and versatile stone celebrated for its captivating contrast, durability, and suitability for various applications, making it a classic and enduring choice for architectural and design projects.

DESCRIPCIóN  PETROGRáFICA  (UNE  EN  12407:2007)  Tono  negro  con  abundantes  vetas blancas y fósiles de color gris-blanco. Grano fino, muy compacto. Se clasifica como biomicrita. 
PETROGRAPHIC DESCRIPTION (UNE EN 12407:2007) Dark tone with irregular white veins compact. Fine grain. Biomicrite. 
ENSAYOS TéCNICOS TECHNICAL ESSAYS RESULTADOS     RESULTS
Densidad aparente (UNE-EN 1936:2007) 2680 kg/m3 Apparent density 
Porosidad abierta (UNE-EN 1936:2007) 0,2% Open porosity 
Resistencia a la flexión (UNE-EN 12372:2007) 14,4 MPa Flexural strength 
Resistencia a la compresión (UNE-EN 1926:2007) MPa Compressive strength 
Absorción de agua a presión atmosférica (UNE-EN 13755:2008) 0,1 % Water absorption at atmospheric pressure 
Resistencia a la abrasión (UNE-EN 1341:2002) 21,5 mm Abrasion resistance 
Resistencia al deslizamiento (UNE-EN 14231:2004) 45 USRV Slip resistance 
Resistencia a la flexión tras heladicidad (12 ciclos) (UNE-EN 12371:2002) 11,9 MPa Flexural strength after frost resistance (12 cycles)
Resistencia a la flexión tras heladicidad (56 ciclos) (UNE-EN 12371:2002) 11,9 MPa Flexural strength after frost resistance (56 cycles)
Resistencia al envejecimiento por choque térmico (UNE-EN 14066:2003) 0,57% (Peso WEIGHT) Thermal shock resistance (20 cycles)
- (Ed)
Carga de rotura para anclajes (UNE-EN 13364:2002) 2200 N Breaking load at a dowel hole 
Coeficiente lineal de dilatación térmica (UNE-EN 14581:2006) -. C-1 Coefficient of linear thermal expansion 
Capilaridad (UNE-EN 1925:1999) (PND*) g/m2·s0,5 Water absorption 
* PND: no se hace capilaridad si   la porosidad < 1%