Arctic Sky is a Chinese quartzite with a light grey ground tone and cool blue, cloudy veining. Its hardness and acid resistance make it a resilient alternative for kitchen worktops, bathrooms and large-format wall surfaces.
Arctic Sky works through a light grey ground tone in which cool blue clouds and fine, as if torn-open veins are embedded. The slab pattern lives on movement — no slab is like another, and it is precisely this legibility that makes the stone interesting for architecture and interior fit-out. Anyone looking for a quiet, neutral background is better served by other materials. Anyone who wants a distinctive image that carries rooms will find a clear answer here.
Geologically, Arctic Sky is a quartzite from Chinese deposits. Quartzites form when quartz-rich sandstone is metamorphically transformed under high pressure and temperature — the original quartz grains fuse into a dense, extremely hard fabric. With a Mohs hardness of about 7, Arctic Sky is thus among the hardest natural stones in the range, markedly above granite (Mohs ~6) and far above marble (Mohs ~3).
Technically, Arctic Sky benefits from this quartz-dominated mineralogy: acids from wine, lemon, coffee or vinegar leave no etch marks on the polished surface. Water absorption is low, the material is frost-resistant and, in most configurations, suitable for external use. Compressive and flexural strength lie in the upper range of the natural stone scale — a property that makes quartzite worktops a resilient choice in the kitchen.
At ROSSITTIS we carry Arctic Sky as an unsized slab for kitchen worktops and vanity tops, in tiles for floors and walls, as tread and riser, window sill and project-specific cutting. The surface finishes currently held in stock are listed in the »Finishes« block further down — the polished variant shows the cool depth of the blue veins most intensely, the satin-honed one is more tolerant in everyday use.
Compared with blue-grey marbles such as Bardiglio, Arctic Sky brings markedly more resilience without giving up the naturally grown appearance. Compared with technical alternatives in engineered quartz or ceramic, the material remains a genuine natural stone with an individual slab pattern and an unedited geological history. For clients who want to combine quartzite hardness with a cool, blue-grey colour palette, Arctic Sky is a very coherent choice.
As a quartzite, Arctic Sky is markedly easier to look after than most marbles. The polished surface tolerates acids from wine, vinegar, lemon or coffee without etch marks — that is the decisive difference from calcareous stones. Nevertheless, on kitchen worktops and vanity tops we recommend a single silane- or polysiloxane-based sealing, because it prevents oily and greasy soiling from penetrating and thereby makes cleaning easier.
For daily cleaning, clear warm water and a soft microfibre cloth are sufficient. For heavier soiling, use a pH-neutral natural stone cleaner; acidic or strongly alkaline household cleaners are not needed and, with permanent direct application, can attack the sealer. Hot pots and pans can be set down directly, because quartzite is heat-resistant — a trivet routine is nevertheless advisable in order to avoid local stresses in the material.
Outdoors, Arctic Sky remains frost-proof when properly installed and with adequate falls. Rinse off dirt from pollen, leaves or de-icing salt with clear water in spring; the stone cleaner is enough once or twice a year. The sealer can be renewed every three to five years depending on exposure, but is not essential outdoors.
Frequently asked questions
Is Arctic Sky suitable for a kitchen?
Yes. As a quartzite, Arctic Sky is acid-resistant and very hard (Mohs ~7) — wine, lemon, vinegar or coffee leave no etch marks on the polished surface. A single sealing gives additional protection against oily and greasy soiling.
Which finishes are available for Arctic Sky?
The surface finishes currently held in stock are listed in the »Finishes« block on this page.
Where does Arctic Sky come from?
Arctic Sky comes from Chinese deposits. Characteristic is the combination of a light grey ground tone and a cool blue cloud structure — formed by the metamorphic transformation of quartz-rich sandstones under pressure and temperature.
How do I clean and care for Arctic Sky?
Daily cleaning with clear water and a microfibre cloth is sufficient. For heavier soiling, use a pH-neutral natural stone cleaner. A single silane-based sealing makes maintenance easier in the kitchen and bathroom, but thanks to quartzite hardness it is not a must.
Is Arctic Sky frost-resistant and suitable for outdoor use?
Yes. Quartzite has a low water absorption and is frost-proof when properly installed with adequate falls. For external surfaces with slip resistance requirements, a matt or textured surface finish makes more sense than polished.
Arctic Sky or granite — which suits better?
At Mohs ~7, Arctic Sky brings a higher surface hardness than most granites (Mohs ~6) and is acid-resistant like granite. The decisive difference lies in the appearance: anyone looking for a cool blue, naturally animated slab character will find it in Arctic Sky — granites mostly show a granular, more even structure.
