Azul Regiao Limestone

Azul Regiao Limestone is a captivating natural stone quarried in Lourinha, Aljubarrota, Alcobaca, Portugal, known for its dark blue to gray coloration and medium-grain texture. This limestone is distinguished by the abundant presence of fossil signs, adding unique visual interest and character to the stone. Its natural elegance and durability make it a preferred choice for a variety of architectural and design applications. 

Texture & Pattern:

• Texture: Medium-grained with a smooth yet slightly textured surface.
• Pattern: Predominantly dark blue to gray tones with cloud-like movements, interspersed with numerous fossil imprints that enhance the stone’s organic appeal.

Test Results & Physical Properties:

• Water Absorption: 0.29% - 0.50% by weight
• Density: 2690 kg/m³
• Compressive Strength: 143.1 - 147.1 MPa
• Flexural Strength: 14.7 - 28.6 MPa
• Hardness (Mohs): 3.0 – 4.0
• Porosity: Low to medium, enhancing durability and reducing moisture absorption.

Slip Resistance:

• Polished Finish: Moderate slip resistance (suitable for interior use).
• Honed/Brushed Finish: Higher slip resistance, ideal for wet and outdoor areas. 

Chemical & Mineral Composition (% by weight):

• Calcium Carbonate (CaCO3): 92% - 95%
• Silica (SiO2): 3% - 4%
• Iron Oxide (Fe2O3): 0.3% - 0.5%
• Magnesium Oxide (MgO): 0.4% - 0.6%
• Alumina (Al2O3): 0.3% - 0.5% 

Applications & Usage:

• Interior Applications: Flooring and wall cladding. Kitchen countertops and bathroom vanities. Staircases, fireplaces, and decorative accents.
• Exterior Applications: Facades and paving. Landscaping features, pool surrounds, and patios. 

Maintenance & Care:

• Cleaning: Use mild pH-neutral cleaners. Avoid acidic or abrasive agents to prevent damage.
• Sealing: Periodic sealing is recommended, particularly for high-traffic and wet areas, to protect against stains and moisture.
• Polishing/Restoration: Can be re-polished or refinished to restore its natural beauty. 

Cutting Sizes (cm & inch):

• Standard Slab Sizes: 250-320 cm x 120-200 cm
• Tile Sizes: 30x30 cm, 30x60 cm, 40x40 cm, 60x60 cm, 60x120 cm, and custom sizes upon request.
• Thickness Options: 2 cm, 3 cm, and custom thicknesses available. 

Surface Finish Options:

• Polished: Glossy and reflective, highlighting the intricate fossil details.
• Honed: Matte and smooth, offering a natural and understated look.
• Brushed: Textured and slip-resistant, ideal for outdoor applications.
• Sandblasted: Rough and anti-slip, suitable for exterior use.
• Leathered: Textured with a slight sheen, enhancing the stone’s character.
• Tumbled: Aged and rustic appearance with softened edges. 

Shipping & Packaging:

• Packing: Securely packed in wooden crates with foam and plastic protection for slabs and tiles.
• Lead Time: 3-5 weeks depending on order volume and customization.

Azul Regiao Limestone’s rich color palette, fossil inclusions, and versatility make it a preferred choice for both residential and commercial projects, offering a sophisticated and timeless aesthetic.