Marron Pirineus Sandstone

Quarried in Solsona, Vinaixa, Lleida, Spain

Description & Appearance: 

Color & Pattern: Marron Pirineus Sandstone is characterized by a fine-grain texture and a light caramel brown base color, adorned with earthy gray and dark beige shades. These subtle earthy tones create a natural, organic look, perfect for a range of architectural styles.

Texture: Fine-grained, compact with a consistent, uniform structure. Soft and smooth surface when finished, with a natural tactile feel.

Pattern: Typically displays subtle layering or gentle stratification reflecting the natural formation of sandstone. Occasional slight color variations due to mineral composition and sediment deposition.

Physical & Mechanical Properties:

• Water Absorption: 3.13%
• Density: 2520 kg/m³
• Compressive Strength: 79.0 MPa
• Flexural Strength: 11.2 MPa
• Hardness (Mohs): ~4–5

Chemical Composition (% by weight, approximate):

• Silica (SiO₂) : 70–75%
• Alumina (Al₂O₃) : 12–15%
• Ferric Oxide (Fe₂O₃) : 3–5%
• Calcium Oxide (CaO) : ~2–3%
• Magnesium Oxide (MgO) : ~1–2%
• Potassium Oxide (K₂O) : ~1%
• Sodium Oxide (Na₂O) : ~0.5–1%
• Loss on Ignition (LOI) : ~1–2%

Mineral Composition (% by weight, approximate):

• Quartz70–75%
• Feldspar10–12%
• Clay minerals (illite, kaolinite)~5–8%
• Iron oxide/hydroxides~3–5%
• Micas & other trace minerals~2–3%

Surface Finish Options:

• Honed: Smooth matte finish, highlighting the stone’s natural color and texture.
• Polished: Creates a slightly glossy finish, deepening the color. Typically less common for sandstone due to its porous nature.
• Bush-Hammered: Textured, slip-resistant finish, ideal for outdoor applications.
• Sawn Cut: Rougher, more natural texture, perfect for rustic designs.
• Sandblasted / Flamed: Subtle texture with muted color tones for non-slip surfaces.
• Tumbled: Weathered, antique look, soft edges for old-world charm.

Cutting Sizes (cm & inch):

Tiles:

• 30x60 cm (12"x24")
• 60x60 cm (24"x24")
• 40x80 cm (16"x32")
• Custom cut-to-size panels and tiles available upon request.

Slabs:

• Thickness: 2 cm (3/4 inch), 3 cm (1 1/4 inch)
• Dimensions: up to 250–280 cm (98–110") long x 120–160 cm (47–63") wide.

Usage & Applications:

• Interior & Exterior Wall Cladding
• Paving and Flooring (interior/exterior)
• Façades & Ventilated Cladding Systems
• Garden & Landscape Design
• Stair Treads, Risers, Copings
• Columns, Pool Surrounds, Decorative Elements

Maintenance:

Regular Cleaning: Use neutral pH stone cleaners or mild soap and water.

Avoid Acids & Harsh Cleaners: Sandstone is sensitive to acidic substances which can etch the stone.

Periodic Sealing: To reduce water absorption and protect against staining, especially in high-traffic or outdoor areas.

Soft Brushing: For textured finishes, use a soft brush to remove dirt without scratching the stone.