Labrador Blue GT is a classic Norwegian syenite of the Labrador family from the Larvik complex, with a silvery to blue-grey base colour and the characteristic labradorescent play of light — blue-violet light reflections from labradorite feldspar crystals, visible in oblique light. Listed in the trade as a granite — high in strength, frost-resistant and suited to prestige interior and exterior architecture.
Petrographisch ein Syenit, im Handel als Granit geführt.
Granite
Available as: Slabs, Skirting, Paving slabs, Tiles and flooring slabs ·
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Labrador Blue GT is a classic Norwegian syenite from the famous Larvik complex in south-west Norway — the most tradition-rich deposit of labradorescent natural dimension stones in Europe. Characteristic is a silvery grey to blue-grey base colour with a fine- to medium-grained mineral texture, in which the trade character of the Labrador family unfolds: individual labradorite feldspar crystals light up in intense blue, violet and occasionally also gold and green, depending on how the light falls. This so-called labradorescence arises from thin mineral layers within the feldspar crystals at which light interferes at specific wavelengths — a purely optical phenomenon that becomes fully visible only on polished surfaces. At ROSSITTIS we carry Labrador Blue GT for prestige wall claddings, floor areas, staircases, façade claddings, kitchen worktops, bar counters, vanity tops, fireplace surrounds, columns and project-specific special fabrications where a strong material signature and light effect are wanted.
Geologically, Labrador Blue GT is a syenite from the Permian Larvik pluton complex in the province of Vestfold in southern Norway — one of the world's most important syenite deposits. Syenites are igneous plutonic rocks, mineralogically related to granite but characterised by a lower quartz content and a higher potassium feldspar content. In the international stone trade, syenites are consistently assigned to the hard stones and listed under “granite”, since they behave technically like classic hard granites. The Larvik complex supplies the whole family of labradorescent stones: Labrador Blue Pearl Classic, Labrador Hell, Labrador Dunkel, Labrador Acier — all with a similar mineralogy but a different selection of the iridescence.
The technical values place Labrador Blue GT clearly in the class of robust hard stones: high compressive strength, low water absorption well below 0.5 per cent, frost-resistant to DIN EN 12371, acid-resistant within the normal application range. The material is therefore suitable without restriction for demanding external and internal applications — including in Central European climate zones with hard winters and de-icing salt exposure. Compared with the Egersund anorthosite Labrador Antic, Labrador Blue GT (a Larvik syenite) is finer-grained, with a silvery grey rather than a dark base colour and a considerably more even mineral distribution.
At ROSSITTIS, Labrador Blue GT is available as a raw slab (random slab), as a floor tile, as a tread and riser, as a window sill, as a skirting, as a paving stone, as a façade element and as a project-specific cut to size; likewise as a kitchen worktop and vanity top. The surface finishes available in stock are listed in the »Finishes« block further down.
Our honest assessment: Labrador Blue GT is a first-class choice for projects looking for a Norwegian premium syenite with a fine-grained silvery blue base colour and a labradorescent light effect. For entrance areas, prestige wall claddings, bar counters and statement kitchen worktops the material is a very strong choice. When viewing samples it should be noted that the intensity of the iridescence can vary from block to block.
In stock
Current availability from our warehouse.
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Finishes
Labrador Blue GT 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.
Satiniert
Die satinierte Oberfläche entsteht durch Bürsten, das weichere Minerale gezielt entfernt und der Fläche eine leichte Tiefe gibt. Mattes Erscheinungsbild mit subtiler Lichtreflexion und haptisch warmer Wirkung. Pflegeleicht, kratzunempfindlich und alltagstauglich — beliebte Alternative zur Politur in modernen Küchen und Wohnräumen.
Geflammt + 1 x gebürstet
Die Oberfläche wird durch Hitze aufgeraut und einmal gebürstet, um scharfkantige Mineralreste zu glätten und loses Material zu entfernen. Etwas sanftere Haptik als rein geflammt, weiterhin rutschhemmend, Farbe weniger intensiv als poliert. Standardwahl für Außenbereiche, Terrassen und stark beanspruchte Bodenflächen.
Care & fabrication
As a Norwegian syenite, Labrador Blue GT can be maintained over the long term and cleaned without difficulty. For kitchen worktops, external paving and heavily used floor areas we recommend a silane- or polysiloxane-based sealer as protection against red wine, coffee, oil and tomato sauce. Routine cleaning is done with a pH-neutral natural stone cleaner and a soft microfibre cloth or mop. You should avoid strongly alkaline heavy-duty cleaners and abrasive steel wool. Outdoors, Labrador Blue GT is frost-resistant — rinse off de-icing salt residues in spring. We recommend refreshing the sealer every three to five years.
Frequently asked questions
What is labradorescence?
Labradorescence is an optical phenomenon in which light is reflected within the labradorite feldspar crystals at thin mineral layers and interferes at specific wavelengths. The result is the characteristic blue, violet and occasionally golden light reflections that light up on the surface depending on the incidence of light. These light effects are only fully visible on polished surfaces.
Where is Labrador Blue GT quarried?
Labrador Blue GT comes from the Permian Larvik pluton complex in the province of Vestfold in southern Norway — one of the world's most important syenite deposits.
What is the difference from Labrador Antic from Egersund?
Labrador Blue GT from the Larvik complex is a syenite — finer-grained, with a silvery grey base colour and a more even mineral distribution. Labrador Antic from Egersund is an anorthosite — coarser-grained, with a darker base matrix and more dramatic, more concentrated iridescence. Anyone looking for a calmer, more refined appearance chooses Labrador Blue GT; for maximum material drama with striking light reflections, Labrador Antic is the stronger choice.
Which surfaces are available for Labrador Blue GT?
The surface finishes available in stock are listed in the »Finishes« block on this page.
Is Labrador Blue GT suitable for kitchen worktops?
Very much so. As a Norwegian syenite of the granite family, Labrador Blue GT is acid-resistant, stain-resistant (with a good sealer) and very robust in everyday cooking. Wine, lemon juice or vinegar leave no etch marks.
Is Labrador Blue GT frost-resistant?
Yes. Norwegian syenites of the Larvik complex are frost-resistant to DIN EN 12371 and suitable without restriction for Central European climate zones.
How do I clean and care for Labrador Blue GT?
Daily care with a pH-neutral natural stone cleaner and a soft microfibre cloth. A silane- or polysiloxane-based sealer after installation protects against stains; refresh every three to five years.
