Amarelo Valverde Limestone Overview:
Amarelo Valverde is a fine to medium-grained limestone sourced from the Pedreira de Azul quarry in Alcanede, Santarém, Portugal. It is known for its relatively homogeneous warm golden beige to yellow color, with a slight greyish tone, small darker dots, and occasional thin veins. Suitable for both interior and exterior applications, this limestone adds a subtle elegance to architectural and design projects.
Physical and Mechanical Properties:
- Water Absorption: 0.5%
- Density: 2643 Kg/m³
- Flexural Strength: 15.0 MPa
- Compressive Strength: 150.2 MPa
- Hardness: Typically measured by Mohs hardness scale, limestone generally falls around 3-4, but specific data for Amarelo Valverde may vary slightly.
- Porosity: Not specified, but typically low due to the fine grain and dense structure.
- Slip Resistance: While specific values aren't provided, limestone has a moderate slip resistance, which can be enhanced through various surface finishes.
Chemical and Mineral Compositions:
- Calcium Carbonate (CaCO₃): Dominates the composition, typically around 95% or higher.
- Magnesium Carbonate (MgCO₃): Minor components that may vary, usually under 5%.
- Iron and Other Trace Elements: Present in small amounts, contributing to color variations and veining.
Usage:
- Interior Applications: Flooring, wall cladding, stairs, countertops, and other decorative elements.
- Exterior Applications: Facades, paving, and other architectural elements.
- Other Uses: Landscaping features, sculptures, and monuments.
Maintenance:
- Routine cleaning using mild, pH-neutral cleaners.
- Regular sealing to enhance stain resistance and protect against moisture.
- Avoid acidic or abrasive cleaners that can damage the surface.
Cutting Sizes:
- Standard Tiles: Common sizes include 30x30 cm, 30x60 cm, and 60x60 cm, but custom sizes can be fabricated based on project requirements.
- Slabs: Generally available in thicknesses of 2 cm and 3 cm but can be customized further.
Surface Finish Options:
- Polished: Achieves a shiny, reflective surface, enhancing color and pattern.
- Honed: Provides a smooth, matte finish, less reflective than polished.
- Brushed: Textured surface that offers a rustic look and improves slip resistance.
- Bush-Hammered: A rough surface that highlights the natural texture.
Amarelo Valverde's aesthetic appeal and durable properties make it an ideal choice for various architectural projects, providing both functionality and elegance. Proper maintenance will extend its longevity and preserve its natural beauty over time.
Portugal 
