NERO MARQUINA

Nero Marquina marble is a valuable natural stone, widely appreciated in architecture. Timeless beauty and technical characteristics identify it as “the black marble par excellence”.

Extraction area of Nero Marquina, the most appreciated among the black marbles

Nero Marquina is a compact fossiliferous sedimentary rock with heterogeneous structure whose geological formation dates back to the Jurassic period.

Its name derives from Spain where it is extracted: the quarries are, in fact, located in the region of Markina, in the Basque area, which is renowned for its rich resources of high-quality marble.

The Nero Marquina is one of the most known and appreciated Spanish natural stones, both for its aesthetic properties and for its excellent technical characteristics, we find it used in projects all over the world.

Technical and aesthetic characteristics of Nero Marquina:

The main colour of Nero Marquina is a deep and intense black with a very fine grain, enriched by small white fossil residues and crossed by white, grey or beige veins more evident, which sometimes tend to pale green. The veined structure with irregular distribution is the main feature of this marble and gives the material an elegant and distinctive appearance.

From a technical point of view, Nero Marquina slabs are quite delicate; for this reason, they are generally reinforced in the underlying part by netting and resining. Apart from this aspect, it is a compact rock with good technical characteristics that make it workable both manually and mechanically, with good resistance to mechanical stress and impact.

Hereinafter there are the main characteristics of Nero Marquinia:

type of test	reference norm	unit	medium	dev.
Flexural strength	UNI EN 12372	MPa	12,0	3,0
Flexural strength after frost and thaw (48 c.)	UNI EN 12371	MPa	9,8	2,3
Wear resistance due to abrasion	Appendice C UNI EN 1341	mm	20,5
Water absorption at atmospheric pressure	UNI EN 13755	% massa	–
Apparent density	UNI EN 1936	Kg/mc.	–
Thermal shock – mass change (20 cycles)	UNI EN 14066	%	–

What are the recommended finishes for Nero Marquina slabs?

The most used finish to accentuate the natural brilliance of the material is undoubtedly the polishing.

However, depending on the needs of the project, Nero Marquina marble lends itself well to other processes such as:

• The brushed finish, which ensures the homogeneity and silky appearance of the stone surface.
• The honed finish, which gives to the slabs a smooth, matte appearance.

Areas of use of Nero Marquina:

Nero Marquina is considered one of the most valuable and sought after black marbles worldwide for residential and commercial projects. Its excellent technical characteristics and timeless beauty make it extremely versatile, suitable for any type of application.

Main application of Nero Marquina

The most common applications for this marble range from architecture to interior design:

• internal flooring, where it creates an effect of deep and timeless elegance.
• stairs and wall coverings, for a dramatic and continuous visual impact.
• designer furnishing elements such as fireplaces, kitchen worktops, sinks and luxury shower trays.

Although it is often used indoors, Nero Marquina has historically also been used in high-quality outdoor flooring, especially in Spain, its country of origin.

Thanks to its strong colour, punctuated by distinctive white veins, it can be used not only in purity, but also in combination with coloured or white marble to create original graphic effects. It goes beautifully with white marble (like Bianco Carrara) or coloured marble, allowing you to create bold contrasts and original graphic effects capable of defining the aesthetics of any environment.

Alberti & Alberti has a wide selection of Nero Marquina slabs in stock: check availability in real time.

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Furthermore, thanks to dedicated machinery, we can create surfaces on request based on specific needs.