Blue in the Night is a deep dark Angolan anorthosite with a blue, brown and silvery mineral play. At ROSSITTIS it is carried as an exclusive dark granite for worktops, stairs, façades and striking interior surfaces.
Anorthosit
Angola
2.925 kg/m³
Available as: Slabs, Skirting, Tiles and flooring slabs
Other trade names: Angola Blue Star, Blues in the Night, Kingston Black, Kingston Blue, New Blue in the Night
About Blue in the Night
Blue in the Night is a dark effect stone that only shows its full strength in the light. The base colour is black to deep anthracite, over which lie blue, silvery and partly brown reflections that appear more or less strongly depending on the viewing angle. The effect is refined, heavy and considerably more dramatic than a calm black granite. On polished kitchen islands, stair stringers or large-format wall surfaces this creates a very high-quality, almost nocturnal depth.
The stone comes from Angola and is petrographically an anorthosite. In the trade it runs, like many labradorite-bearing dark hard stones, under the designation granite, because that is precisely the segment in which it is searched for. Compared with Blue Eyes, Blue in the Night is darker and higher in contrast. Against Labrador Scuro it usually appears more closed and less colourful. Anyone looking for a dark natural stone with a subtle reflective effect, but not wanting a metallically overloaded effect stone, will find a very good balance here.
Technically, Blue in the Night is convincing: around 2,900 to 2,950 kg/m³ bulk density, only about 0.14 to 0.16 % water absorption, approximately 97.1 to 106.9 MPa compressive strength and about 9.8 to 10.8 MPa flexural strength. It is therefore well suited to worktops, stairs, walls and many external applications. Importantly, the strength is respectable but not extreme; large spans and delicate geometries should therefore be planned carefully. Chemically the stone is less delicate than marble, but aggressive cleaners are unnecessary here too.
The surface finishes available in stock are listed in the »Finishes« block further down. At ROSSITTIS, Blue in the Night is available as a raw slab, in tiles, as a tread and riser, window sill, skirting, kitchen worktop and for façade and external components.
The honest assessment: Blue in the Night is not a calm standard black stone. Its strength is dark depth with a play of reflections. Anyone looking for exactly this heavy, elegant character gets a very distinctive material. Anyone wanting absolute homogeneity should rather turn to Nero Assoluto.
In stock
Current availability from our warehouse.
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Technical data
Guide values for the stone type, taken from manufacturer and test reports. Natural stone is a natural product — individual batches and slabs can differ. For critical applications, request slab-specific test data.
Rohdichte
2.925 kg/m³
Druckfestigkeit
102,0 MPa
Biegezugfestigkeit
10,3 MPa
Wasseraufnahme
0,15 %
Finishes
Blue in the Night is available in a range of finishes. The finish affects appearance, feel and the care it needs.
Poliert
Politur ist die klassischste Veredelung im Hartgesteinsegment — eine spiegelglatte, hochglänzende Oberfläche mit höchstmöglicher Farbintensität und maximaler Tiefenwirkung der Mineralstruktur. Als säurebeständiges Silikatgestein ist polierter Granit pflegeleicht und für Küchenarbeitsplatten, Wandverkleidungen und repräsentative Sichtflächen erste Wahl.
Care & fabrication
Blue in the Night should be sealed on kitchen and wet surfaces. That makes cleaning and care easier and keeps the dark surface visually more even.
For cleaning and care, pH-neutral natural stone cleaners, water and a soft cloth are enough. On polished surfaces, limescale and water residues should not be allowed to dry on, because they can make the play of reflections look duller.
Avoid abrasive pads and aggressive cleaners without natural stone approval. Oil, coffee and strongly colouring foods should be removed promptly from worktops.
Outdoors, suitable surfaces, professional installation and good drainage matter. Blue in the Night then remains convincing in the long term.
Frequently asked questions
Is Blue in the Night suitable for the kitchen?
Yes. With around 2,900 to 2,950 kg/m³ bulk density and only about 0.14 to 0.16 % water absorption, Blue in the Night is well suited to kitchen worktops.
Which surfaces are available for Blue in the Night?
The surface finishes available in stock are listed in the »Finishes« block on this page.
Where does Blue in the Night come from?
Blue in the Night comes from Angola. It is a dark anorthositic hard stone with a blue and silvery mineral play.
How do I clean and care for Blue in the Night?
For cleaning and care, pH-neutral natural stone cleaners and soft cloths are sufficient. Sealing is worthwhile above all on kitchen and bathroom surfaces.
Is Blue in the Night suitable for outdoor use?
Yes, in principle. The low water absorption speaks for good external suitability, provided the surface and the construction suit the intended use.
Blue in the Night or Blue Eyes?
Blue in the Night is darker, more dramatic and heavier in effect. Blue Eyes appears lighter, more silvery and more classically labradorescent.
