Crevola di Ossola Unito MarbleCrevola di Ossola Unito Marble Overview

Crevola di Ossola Unito Marble is a luxurious natural stone quarried in the region of Crevoladossola, Domodossola, Val d'Ossola, in the Provincia di Verbano-Cusio-Ossola, Piemonte, Italy. Known for its aesthetic appeal, it features a semi-white base with delicate hues of blue, light silver-gray, and veins of brown dolomite, adding a sophisticated touch to any space.

Physical and Mechanical Properties

• Water Absorption: 0.15% by weight
• Density: 2810 kg/m³
• Flexural Strength: 29.6 MPa
• Compressive Strength: 165.0 - 167.0 MPa
• Hardness: Given its dolomitic composition, this marble generally showcases good hardness similar to that of other dolomite marbles, making it suitable for applications requiring durability.
• Porosity: Low, which contributes to its resistance to staining and general durability.
• Slip Resistance: Generally moderate, but specific testing may be required for wet applications to ensure safety.

Chemical and Mineral Compositions

• Calcium Carbonate (CaCO₃): Major constituent; typically about 95-98% of marble composition.
• Dolomite (CaMg(CO₃)₂): Imparts the marble with its unique veining; ranges vary depending on specific samples.
• Other Minerals: Trace amounts of silicates, graphite, and potentially iron oxides which contribute to coloring and veining.

Usage

• Interior Flooring: Suitable due to its aesthetic appeal and mechanical strength.
• Wall Cladding: Perfect for adding a luxurious touch to both interior and exterior walls.
• Countertops: Often used in kitchens and bathrooms for its beauty and durability.
• Tabletops: Offers elegance and sophistication in both residential and commercial settings.
• Staircases and Architectural Features: Frequently used in high-end architectural elements.

Maintenance

• Sealing: Regular sealing is recommended to protect against potential staining.
• Cleaning: Clean with pH-neutral, non-abrasive, and non-acidic cleaning products.
• Avoid: Harsh chemicals and abrasive cleaning materials that could damage the surface.

Cutting Sizes

• Standard Slabs: Typically available in thicknesses of 2 cm and 3 cm.
• Tiles: Common sizes include 30x30 cm, 30x60 cm, and 60x60 cm; custom sizes may also be available.

Surface Finish Options

• Polished: The most popular finish for emphasizing the stone’s natural color and patterns.
• Honed: Provides a matte look which reduces glare and is less slippery, suitable for flooring.
• Brushed/Antiqued: Offers a textured feel for a rustic or aged appearance.
• Leathered: Provides a soft, textured finish that is subtly sophisticated.

Crevola di Ossola Unito Marble is prized for its visual appeal and versatility in usage while requiring regular maintenance to preserve its natural beauty over time.

• Petrographic definition: Dolomite marble
• Mass of Unit Volume: 2810 Kg/m³
• Water absorption: 0.15%
• Simple Compression:  tensile strength 167 MPa
• Simple compression after freeze-thaw tensile strength: 165 MPa
• Indirect tensile strength through bending: 29.6 MPa
• Relative Abrasion coefficient (referring to s. Fedelino Granite): 0.25
• Impact resistance: minimum height of fall: 67 cm
• Knoop microhardness: 2806 MPa
• Index of non-uniformity of hardness: 1.99
• Source: Politecnico di Torino