Rojo Coralo Marble is a deep red natural marble with garnet and purplish nuances. It features strong and irregular natural veining, which enhances its distinctive character and visual strength. Its luxurious red tones and dramatic veining make it ideal for prestigious interior and exterior applications, where a bold, elegant aesthetic is desired.

Petrographic family: Pending specific petrographic study – presumably calcitic-dolomitic marble

Origin / Quarry: Alconera, Badajoz, Spain

Chromatic description: Red tones of varying intensity with natural variations and irregular veining

Observations:

• Rare variety, estimated at ~3% of the total 18.625 million m³ marble reserves at 50 m depth
• Historical quarry fronts, now inactive, indicate its former high market value
• Material not tested by VALEXMAR due to limited demand
• Technical properties are assumed similar to Negro Laguna / Negro Pinta black marbles, with slightly lower strength

Texture & Pattern

Texture: Medium to fine-grained, crystalline, compact

Pattern: Predominantly solid red with dynamic white or lighter red veining; each slab is unique

Physical-Mechanical Properties

(assumed, similar to Negro Laguna / Negro Pinta, for estimation purposes)

• Apparent Density (EN 1936): ≈ 2,680 – 2,720 kg/m³
• Open Porosity (EN 1936): ≈ 0.3 – 0.4 %
• Water Absorption (EN 13755): ≈ 0.1 – 0.2 %
• Compressive Strength (EN 1926): ≈ 140 – 155 MPa
• Flexural Strength (EN 12372): ≈ 16 – 18 MPa
• Abrasion Resistance (EN 14157): ≈ 20 – 22 mm
• Frost Resistance (EN 12371, 168 cycles): 0–0.5 % alteration
• Impact Resistance (UNE-EN 14158:2004): ≈ 2–3 J
• Thermal Shock Resistance (UNE-EN 14066:2013): ≤ –1.5 %
• Hardness, Mineralogy & Chemistry Mohs Hardness: ≈ 3–3.5

Mineral Composition (% by weight):

• Calcite (CaCO₃): ≈ 95–97 %
• Hematite & Iron oxides (Fe₂O₃): ≈ 1.5–2.5 % (responsible for red color)
• Quartz & Silicates: ≈ 1–2 %
• Accessory minerals (mica, feldspar, clays): < 1 %

Chemical Composition (% by weight):

• CaCO₃: 95–97 %
• SiO₂: 1–2 %
• Fe₂O₃ + MnO: 1.5–2.5 %
• MgCO₃: 0.5–1 %

Applications & Usage

• Flooring and wall cladding (interior & exterior)
• Luxury hotel lobbies, reception halls, and offices
• Kitchen countertops, bathroom vanities, and furniture tops
• Stairs, thresholds, skirting, fireplaces
• Monuments, sculptures, and restoration projects

Maintenance

• Use pH-neutral cleaners, avoid acidic solutions
• Seal polished and honed surfaces for stain protection
• Regular dusting and damp cloth cleaning recommended

Available Sizes & Surface Finishes

Slabs:

• Thickness: 20 mm, 30 mm (custom on request)
• Dimensions: 250–300 cm x 140–200 cm

Tiles (Cut-to-Size):

• Metric: 30x30, 40x40, 60x30, 60x40, 60x60 cm
• Thickness: 10, 15, 20 mm (custom sizes on request)

Finishes:

Polished, Honed, Satin, Brushed, Sanded, Tumbled, Bush-hammered