Portuguese Grey Limestone Slab

Portuguese Grey Limestone Slab - Warm Grey Base with Fossil Shell Character

Portuguese Grey (stone code 240501) is a natural limestone quarried in Portugal, prized for its warm grey background, evenly distributed cold-grey floral-pattern veins, and visible fossil shell deposits. This combination gives each slab a reserved, serene temperament that complements Modern, Scandinavian, and Industrial design schemes.

As a sedimentary stone, Portuguese Grey retains the imprints of ancient marine life—fossil shells that punctuate the surface and distinguish it from uniform engineered materials. The floral veining, distributed evenly across the slab, creates subtle movement without overwhelming the overall tonal harmony.

Portuguese Grey full-size slab — warm grey base with floral veining and fossil shell detail.

Physical Properties of Portuguese Limestone

Portuguese limestone typically exhibits a density of 2.4–2.7 g/cm³, water absorption below 3%, Mohs hardness of 3–4, and compressive strength ranging from 60 to 170 MPa. These values place it in the mid-range of natural building stones—softer than granite but sufficiently durable for interior countertops, vanity tops, wall cladding, and flooring when properly sealed.

The 18–20 mm slab reference price documented in the source workbook is RMB 300–400/m² (average 350), positioning Portuguese Grey as an inexpensive option within the natural stone slab category. This cost advantage, combined with its distinctive fossil character, makes it particularly attractive for large-scale hospitality and multi-unit residential projects where natural stone authenticity is desired at a controlled budget.

Closeup view showing fossil shell deposits and cold-grey floral veining pattern.

Application Products from Portuguese Grey Limestone

One of the key advantages of Portuguese Grey limestone is its versatility across multiple interior stone applications. The same slab can be cut, profiled, and finished into a wide range of products—making it an ideal single-source material for projects that require visual consistency across kitchen, bathroom, and living spaces. Below are the primary application products that Apexstone manufactures from Portuguese Grey slabs, illustrated with verified project images from our COS image library.

Bathroom Floor & Wall Tilesiles

Portuguese Grey limestone is approved by the material applicability table for bathroom and shower-room floor and wall finishes. The warm grey base creates a calm foundation while the colder floral movement keeps large surface areas visually detailed. When sealed correctly, the stone performs well in continuous-moisture environments, and the honed or brushed finish provides a matte, non-reflective surface that diffuses light beautifully.

Portuguese Grey Limestone used as bathroom floor tiles — warm grey base with floral pattern.

Portuguese Grey Limestone bathroom wall tiles — verified project image showing the material's restrained grey pattern on vertical surfaces.ces.

Bathroom Countertops & Vanity TopsTops

For bathroom countertops and vanity tops, Portuguese Grey limestone offers a spa-like serenity. The warm grey tone harmonizes with brushed nickel and matte black fixtures, while the fossil detail adds a tactile, natural quality that elevates the room beyond a standard vanity surface. We fabricate vanity tops with single or double bowl cutouts, standard or custom bowl shapes, faucet hole drilling, and integrated backsplashes. Honed finishes are recommended for bathroom applications to reduce slipperiness.

Portuguese Grey Limestone bathroom cabinet top — verified project image showing the stone used as a vanity counter surface.

Portuguese Grey Limestone vanity design reference — the fossil detail adds a tactile, natural quality to the vanity surface.

Full-Space Interior Application

Beyond individual products, Portuguese Grey limestone can be specified across an entire interior — floors, walls, countertops, and vanity surfaces — all cut from the same material batch for visual consistency. This full-space approach is where the stone's reserved temperament truly shines, creating a cohesive, immersive environment.ent.

A complete bathroom space showing Portuguese Grey Limestone's restrained grey pattern across floor and wall surfaces.ces.

Production Process — From Quarry to Finished Product

Every Portuguese Grey limestone product from Apexstone follows a controlled production process that ensures dimensional accuracy, surface consistency, and structural integrity. Our Xiamen facility combines Italian gang-saw technology with CNC precision cutting and manual quality inspection at every stage.

Portuguese Grey Limestone slabs at the Apexstone facility — raw material ready for gang-saw cutting and CNC processing.

Step 1 - Block Selection: Limestone blocks are hand-selected at the quarry in Portugal, inspected for fossil distribution, vein consistency, and structural soundness. Only blocks that meet Apexstone's density and color criteria are approved for export to our Xiamen facility.ity.

Step 2 - Gang-Saw Cutting: Raw blocks are mounted on the gang-saw and sliced into full-size slabs at the reference thickness of 18–20 mm. The cutting process uses chilled water and steel shot abrasive to produce a clean, flat surface ready for further processing.

Step 3 - Surface Finishing: Slabs are processed through honing, polishing, or brushing lines depending on the specified finish. Honed finishes produce a matte, smooth surface ideal for wet areas; polished finishes create a reflective, formal sheen; brushed finishes add texture and a weathered, tactile quality.

Step 4 - CNC Cutting & Edge Profiling:ing: For custom products—countertops, vanity tops, sinks—the slabs are cut on CNC bridge saws to exact CAD dimensions. Edge profiles are milled on CNC routers, and cutouts for sinks, faucets, and cooktops are drilled with precision water-jet or core-bit tooling.

Step 5 - Sealing & Quality Control:rol: Finished pieces are sealed with penetrating stone sealer to reduce porosity and protect against staining. Each piece undergoes a final inspection for dimensional tolerance, surface defects, vein direction, and fossil placement before being packed for shipment.

Why Choose Apexstone for Portuguese Grey Limestone?

Apexstone has supplied natural stone to projects in 42 countries since 2002. Our Portuguese Grey limestone slabs are sourced directly from Portuguese quarries, inspected block-by-block for fossil distribution and vein consistency, and processed in our Xiamen facility with precision gang-saw cutting, calibrated thickness, and optional surface finishes (honed, polished, brushed). We provide CAD pre-visualization, edge profiling, custom cutouts, and global logistics coordination—including container loading and documentation for B2B importers.

By manufacturing multiple product types—countertops, vanity tops, wall cladding, floor tiles, and full-space applications—from the same Portuguese Grey slabs, we enable project designers to achieve visual consistency across an entire interior with a single stone source. This approach simplifies procurement, reduces color-matching risk, and ensures that every surface in the project shares the same fossil character and warm grey tonal base.

Detail view highlighting the warm grey base tone and reserved, serene character.

Contact us for slab availability, current pricing, and project-specific customization. Minimum order quantities and lead times vary by slab size and finish selection.