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Caesarstone® 584 Opal Taj

Caesarstone® 584 Opal Taj is a sintered porcelain large-format slab from the Israeli premium manufacturer Caesarstone, taken from the Lioli Porcelain line (Supernatural Collection). The slab shows a soft warm cream-beige ground tone with flowing, feather-like cream-coloured sweeps and subtle taupe veining – a composition recalling warm onyx and beige quartzite. At ROSSITTIS we fabricate Opal Taj into heat- and acid-resistant kitchen worktops, islands, wall claddings, floor coverings, bathroom fit-outs and façade elements with a warm, elegant stone character.

A large-format porcelain slab (sintered stone / porcelain) from the Caesarstone Lioli Porcelain line, from the Supernatural Collection – not a naturally formed stone and not an engineered quartz (Caesarstone's Quartz Surfaces line is to be clearly distinguished from it), but a fully mineral, through-sintered large-format porcelain of feldspar, quartz, clay minerals and pigments without polymer binders. The variant “584 Opal Taj” presents a calm beige stone composition with fluid cream-coloured sweeps and subtle taupe veining – stylistically an allusion to the Brazilian Taj Mahal quartzite.

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Available as: Slabs · 1 of 39 reserved

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About Caesarstone® 584 Opal Taj

Background. Caesarstone® is the Israeli premium brand for surface materials, founded in 1987 in Kibbutz Sdot Yam and present worldwide today. The manufacturer's range comprises three clearly separated product lines: the historical Quartz Surfaces line made of engineered quartz (around 90 % quartz particles + 7 – 10 % polyester resin), the Mineral™ line launched in 2024 as a low-silicosis further development, and the Lioli Porcelain line made of fully mineral-sintered large-format porcelain. Opal Taj (code 584) belongs to the Lioli Porcelain line – in the Caesarstone code system that is the Supernatural Collection with nature-inspired surface designs.

Material build-up and manufacture. A Caesarstone Lioli porcelain slab consists of practically 100 % mineral raw materials – feldspar, quartz, clay minerals and pigments – without polymer binders. The mix is compacted in a pressing process, given decorated pigment layers for the surface appearance and then sintered at temperatures above 1,200 °C in a tunnel kiln. During this sintering the mineral particles partly fuse into a closed crystalline mineral structure – the end product is a fully mineral-sintered slab with no resin content. This produces decisive technical advantages over Caesarstone's own Quartz Surfaces line: very high heat resistance (hot pans can be set down directly), full UV resistance and therefore suitability for exterior use, frost resistance and almost complete acid resistance.

Appearance. The ground tone is a warm, neutral creamy-beige ivory through to a delicate warm champagne tone with a subtle golden shimmer. Distributed across the ground are flowing, softly feather-like cream-coloured sweeps that drift across the slab like soft clouds or watercolour currents, as well as very subtle, slightly taupe to pale grey veining that structures the picture with minimal depth of contrast. From a medium distance the grade looks almost monochrome, warm and creamy; close up one discovers the fine fluid movement. Stylistically, Opal Taj is an allusion to the world-famous Taj Mahal quartzite from Brazil (a warm beige quartzite) – but in a markedly calmer, feather-lighter composition.

Formats and thicknesses. Caesarstone Lioli supplies the slabs in the jumbo format 1,600 × 3,200 mm in thicknesses of 6, 12 and 20 mm. The 6 mm slab is particularly suitable for wall claddings, furniture fronts and bonded applications; the 12 mm slab is the standard thickness for wall and floor; the 20 mm slab is standard for kitchen worktops and heavily used floor applications.

Thermal and chemical properties. Unlike Caesarstone's Quartz Surfaces line, there is no polyester resin here – which means the typical weaknesses fall away: Opal Taj is heat-resistant (hot pans can be set down directly; the slab is unaffected well beyond 200 °C), almost completely acid-resistant (wine, lemon, tomato, vinegar leave no traces) and fully UV-stable (suitable for exterior use). Frost and weather resistance are given. Water absorption: very low (below 0.1 %, as is typical of porcelain).

Certificates. Caesarstone Lioli is GREENGUARD Gold certified (very low VOC emissions, suitable for schools and care facilities), approved for direct food contact to NSF and EU Food Contact, and produced under environmental management to ISO 14001.

ROSSITTIS range. We carry Opal Taj with the honed (C400) standard finish with stock depth in 12 mm thickness; further thicknesses and finishes from the Caesarstone Lioli programme are available on request. From the slabs we produce kitchen worktops, islands, bar counters, buffet and furniture tops, wall claddings, bathroom fit-outs (vanity units, wall and floor applications, showers with proper waterproofing), window sills, skirtings, interior and exterior floors and façade elements.

Comparison. Within the Caesarstone Lioli Supernatural line, Opal Taj positions itself as the warmest, creamiest, calmest beige-quartzite character. A somewhat more dramatically veined sister grade is Calacatta-oriented (white-beige with more powerful veining). Compared with genuine Taj Mahal quartzite from Brazil, Opal Taj is markedly calmer, more even and more predictable – the geological block-to-block variation of the natural quartzite is entirely absent, and the slab shows a deliberately composed idea of natural stone. Within the large-format porcelain market, Opal Taj competes with Laminam (Italian), Neolith (Spanish), Dekton (Spanish, Cosentino group) and SapienStone (Italian).

An honest assessment. Opal Taj is a powerful choice for any application in which a warm, elegant stone character together with technical resilience is wanted. The grade works particularly strongly as a kitchen worktop and island in warm kitchen concepts, as wall cladding in bathroom fit-outs and as a façade panel in Mediterranean-warm architectural concepts. Anyone looking for a more dramatic marble look with powerful veins should reach for Calacatta-oriented grades; anyone who wants the authentic Taj Mahal quartzite with geological block-to-block variation should switch to natural stone and accept the greater willingness to care for it.

In stock

Current availability from our warehouse.

39 large-format slabs in stock — 38 available now, 1 reserved · plus 3 blocks

Thicknesses: 1.2 cm · Finishes: Honed C400 · Available as: Slabs

Updated daily from our live stock.

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Suitability by application

Finishes

Caesarstone® 584 Opal Taj is available in a range of finishes. The finish affects appearance, feel and the care it needs.

Honed C400

A special surface on Caesarstone ceramic — in feel and effect it corresponds to the naturale matt finish. Level in appearance, somewhat rougher than polished, closed by the firing. Easy to care for, insensitive to scratches and stain-resistant — for demanding kitchen worktops and wall claddings with matt elegance.

Care & fabrication

Cleaning. Day to day, warm water, a soft cloth or a clean mop and a neutral to mildly alkaline pH cleaner are enough. Suitable are mild all-purpose cleaners, mild washing-up foam and all commercially available sanitary and kitchen cleaners without hydrofluoric acid (HF). The porcelain is almost completely acid-resistant – even acetic, citric and hydrochloric acid barely attack the slab. Take up spilled liquids promptly, because on the warm creamy surface dried drops with a dark pigment (coffee, red wine, black tea) can remain visible as paler hazes; the material itself, however, is free of pores and therefore stain-resistant.

Do not use. Hydrofluoric acid (HF) and fluoride-containing cleaners are the only class of substance that can genuinely attack porcelain – they occur practically only in industrial glass and stone cleaners and are not relevant in the home. Aggressive scouring sponges or abrasive pastes are likewise taboo, because they can scour the honed surface matt.

Impregnation. Not required – porcelain is dense and free of pores in itself, water absorption is below 0.1 %.

Warm beige slabs – particular care notes. On a warm creamy slab with a soft fluid design, wipe streaks, dried water drops and coffee or wine splashes become more clearly visible as paler or darker hazes than on textured surfaces. On kitchen worktops we recommend a consistent wipe-dry routine with a soft microfibre cloth and prompt take-up of pigmented liquids.

Kitchen and bathroom. In kitchen and bathroom use, technically all but unbeatable: hot pans can be set down directly for short periods, acids such as vinegar, wine, lemon and tomato leave no traces, and anti-limescale sprays and all commercially available sanitary cleaners are approved. NSF and EU Food Contact certified for direct food contact.

Floor and wall. Interior floors in large format or tile format, wall claddings in the thinner 6 mm slab with bonded laying, bar counters and furniture tops – all applications are approved. For floor applications with water contact we recommend proper waterproofing in accordance with DIN 18534.

Outdoors and frost. Fully suitable. The slab is UV-stable, frost- and weather-resistant and can be used as a rainscreen façade panel, exterior wall cladding, outdoor kitchen surface and exterior floor covering.

Scratches and repair. Porcelain is very hard (about Mohs 7) and therefore considerably more scratch-resistant than most natural materials. Deeper damage cannot simply be re-polished – repair is by replacing the affected workpiece.

Frequently asked questions

What kind of material is Caesarstone® 584 Opal Taj?

A sintered porcelain large-format slab (sintered stone / porcelain ceramic) from the Caesarstone Lioli Porcelain line, from the Supernatural Collection – not a natural stone and not an engineered quartz. Mineral raw materials (feldspar, quartz, clay minerals, pigments) are compacted in a pressing process without polymer binders and sintered at over 1,200 °C in a tunnel kiln. The “584 Opal Taj” version shows a warm cream-beige ground tone with fluid cream-coloured sweeps and subtle taupe veining.

How does Caesarstone Lioli differ from the classic Caesarstone Quartz Surfaces line?

Caesarstone offers three product lines: Quartz Surfaces (engineered quartz made of around 90 % quartz + 7 – 10 % polyester resin, the classic Caesarstone material), Mineral™ (the low-silicosis further development of Quartz Surfaces since 2024) and Lioli Porcelain (fully mineral-sintered large-format porcelain with no resin content). Opal Taj belongs to the Lioli Porcelain line – which makes the slab heat-resistant (hot pans can be set down directly), UV-stable and suitable for exterior use; properties that the resin-containing Quartz Surfaces line lacks.

What does the name “Opal Taj” refer to?

The name points to the world-famous Taj Mahal quartzite from Brazil (a warm beige quartzite from the state of Bahia) and to the opaline, mother-of-pearl-like shimmer of the soft fluid veining. Stylistically, Opal Taj is an allusion to that premium natural quartzite – but in a markedly calmer, more predictable composition with feather-lighter sweeps.

Which slab formats and thicknesses does Caesarstone Lioli offer?

The standard format is 1,600 × 3,200 mm (jumbo) in thicknesses of 6, 12 and 20 mm. The 6 mm slab is particularly suitable for wall claddings, furniture fronts and bonded applications; the 12 mm slab is standard for wall and floor; the 20 mm slab is standard for kitchen worktops and heavily used floor applications.

Which certificates does Caesarstone Lioli hold?

GREENGUARD Gold certified (very low VOC emissions), approved for direct food contact to NSF and EU Food Contact, ISO 14001 for environmentally managed production.

Is Opal Taj suitable for exterior surfaces, façades and outdoor kitchens?

Yes, completely. Porcelain is UV-stable, frost- and weather-resistant and can be used as a rainscreen façade panel, exterior wall cladding, outdoor kitchen surface and exterior floor covering.

Which cleaners may I use?

Permitted are warm water, all neutral, alkaline or mildly acidic cleaners, mild all-purpose cleaners and all commercially available sanitary and kitchen cleaners. The slab is almost completely acid-resistant. Taboo are exclusively hydrofluoric acid (HF) and fluoride-containing cleaners – these are not relevant in the home. Aggressive scouring sponges can scour the honed surface matt and are likewise to be avoided.

Opal Taj or genuine Taj Mahal quartzite?

Opal Taj (porcelain) is more even, more predictable, acid-resistant and fully UV-stable – the rational choice with minimal care effort. Taj Mahal quartzite (natural stone from Brazil) looks geologically more authentic with characteristic block-to-block variation and natural veining, has a higher Mohs hardness (7+) and is acid-resistant, but because of the natural pore structure is more susceptible to deep dark pigment stains (wine, ink) and requires an impregnation. The choice is one between a calm, elegant stone character with minimal care (porcelain) and geological authenticity with a greater care effort (natural quartzite).

What does Caesarstone® 584 Opal Taj cost?

The price depends on the format, thickness, surface finish and fabrication — 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.