Onyx Blue Grey is a light onyx with cool white, grey and ice-blue tones. It is used above all for backlit wall surfaces, washbasin tops, counters and exclusive interior fit-outs.
Onyx Blue Grey appears cool, light and almost translucent. The mixture of a white ground, grey-blue veils and fine mineral zones is more reminiscent of ice or smoke than of a classic warm onyx. That is precisely what makes the material interesting: it brings the light permeability and depth of an onyx with it, without moving in a golden or honey-coloured direction. At ROSSITTIS we stock Onyx Blue Grey for interiors in which stone may be both a surface and an object of light.
The material is traded in Italy and belongs to the group of onyx rocks, that is, calcareous translucent decorative stones with a banded structure. Unlike robust hard stones, Onyx Blue Grey lives not on technical hardness but on its visual effect. Backlighting, large-format wall compositions and cleanly planned bookmatch arrangements show the stone to particularly good advantage.
Technically, Onyx Blue Grey should be treated like a delicate, decorative interior stone. What is decisive is a good substructure, stress-free installation, careful bonding and a prudent approach in everyday use. For heavily used kitchens, external stairs or public circulation zones, onyx is as a rule not the first choice. Its strength lies where light, colour and translucency are more important than maximum robustness.
At ROSSITTIS, Onyx Blue Grey is available as a raw slab, as a wall cladding, as a vanity top, counter front, window sill and for backlit bespoke work. The stone is particularly convincing in bathrooms, spa areas, reception zones and high-quality furniture projects. Anyone planning it as a table or counter should take edges, cut-outs and the supporting construction into account early on.
Our honest assessment: Onyx Blue Grey is not a stone for every situation. It is more delicate and more demanding in planning than quartzite, granite or porcelain stoneware. If, however, you are looking for a light onyx with a cool colour world and strong potential for light, it is barely replaceable in design terms.
In stock
Current availability from our warehouse.
11 slabs in stock · plus 1 block
Thicknesses: 2 cm · Finishes: Polished · Available as: Slabs
Onyx Blue Grey is available in a range of finishes. The finish affects appearance, feel and the care it needs.
Polished
Polishing is the preferred finish for onyx — the mirror-smooth surface brings out the material's varied colour character in full. The highest possible colour intensity and deep light reflection. Onyx is acid-sensitive and softer against scratches than marble — recommended for wall cladding and designed visible surfaces, less so for worktops.
Care & fabrication
You should clean and care for Onyx Blue Grey with particular gentleness. An impregnation makes sense for almost all applications; on washbasin tops and decorative slabs it is practically mandatory. Clean only with mild, pH-neutral natural stone cleaners and soft cloths. You should avoid acids, intensely colouring soiling, abrasive pads and high point loads on edges or cut-outs.
Frequently asked questions
Is Onyx Blue Grey suitable for backlit surfaces?
Yes, for that purpose the material is particularly interesting. Backlit, the light, partly translucent structure brings depth and luminosity into wall compositions, counters or washbasin tops.
Can Onyx Blue Grey be used as a kitchen worktop?
Technically that is possible; in practice it is usually not the best choice. Onyx is more sensitive to acid, scratches and impact loading than granite or quartzite and is more suited to decorative than to heavily used kitchen surfaces.
Where does Onyx Blue Grey come from?
Onyx Blue Grey is listed in the Italian natural stone trade and is established as a light, cool onyx. What is decisive is less the regional sub-varieties than the actual slab and its effect in light.
How do I care for Onyx Blue Grey correctly?
Clean the stone very gently with pH-neutral natural stone cleaners and renew the impregnation regularly. Avoid acids, aggressive bathroom cleaners and any unnecessary mechanical loading.
Is Onyx Blue Grey a marble?
No, in the trade the material is listed as an onyx. Onyx also belongs to the calcareous range, but because of its transparency, banding and use it is clearly treated as a material group of its own.
Where does Onyx Blue Grey work best?
It works most strongly on walls, counters, washbasin tops and backlit surfaces. There it plays out its light permeability and its cool, almost glassy colour effect.
What does Onyx Blue Grey cost?
The price depends on the batch, thickness, surface finish and fabrication — with natural stone there is no serious flat rate per square metre. Business customers see prices once their B2B account is activated; private customers receive a complete quote through a fabricator near them.
