Excalibur Granite

Excalibur Granite is a stunning natural stone known for its aesthetic appeal and robust physical properties. Here, we delve into its physical and mechanical properties, chemical and mineral composition, usage, maintenance, cutting sizes, and available surface finishes.

Physical and Mechanical Properties:

• Water Absorption: Typically less than 0.5%, indicating low porosity and resistance to moisture penetration.
• Density: Ranges from 2.67 to 2.72 g/cm³, showcasing its solid and durable nature.
• Flexural Strength: Approximately 12 to 15 MPa, indicating good resistance to bending and ideal for various structural applications.
• Compressive Strength: Between 170 to 190 MPa, evidencing its ability to withstand substantial compressive loads.
• Hardness: Around 6 to 7 on the Mohs scale, which reflects its resistance to scratches and abrasion.
• Porosity: Low porosity contributes to its stain resistance, making it ideal for kitchen countertops and heavily used surfaces.
• Slip Resistance: Generally good, especially in finishes like honed, which provide additional traction.

Chemical and Mineral Composition (by weight):

• Quartz: ~20-30%, contributes to its hardness and durability.
• Feldspar: ~60-70%, provides the main body and strength.
• Mica: ~5%, gives slight shimmer and aesthetic qualities.
• Other Minerals (including Biotite and Hornblende): ~5-10%, impart additional color and unique patterns.

Usage:

• Countertops: Thanks to its heat and scratch resistance.
• Flooring: Durable enough to handle high foot traffic.
• Wall Cladding: Offers a luxurious appearance.
• Outdoor Applications: Such as garden features and façades, given its weather-resistant properties.

Maintenance:

• Sealing: Requires periodic sealing to maintain appearance and resistance to stains.
• Cleaning: Use mild soap and water; avoid harsh chemicals and acidic cleaners to prevent degradation.
• Regular Inspection: Check for chips and scratches, primarily at cut edges and around high-use areas.

Cutting Sizes (cm):

• Slabs: Commonly available in 2 cm and 3 cm thicknesses.
• Tiles: Sizes may vary, but typical dimensions include 30x30, 30x60, and 60x60 cm.
• Custom Cuts: Available depending on project requirements.

Surface Finish Options:

• Polished: High gloss finish that highlights the stone's colors and patterns, best for countertops and wall applications.
• Honed: A matte finish that provides a more subtle look, good for flooring and outdoor use.
• Leathered: Adds texture while maintaining a less glossy finish, ideal for both countertops and feature walls.
• Flamed: Rougher surface, providing excellent slip resistance, suitable for outdoor paving and pool surrounds.

Excalibur Granite’s combination of beauty and strength makes it a desirable choice for a variety of architectural and design applications. Its unique aesthetic, combined with its robust properties, ensure that it not only enhances the visual appeal of spaces but also stands up to the demands of everyday use. Regular maintenance and professional sealing will preserve its beauty and functionality for years to come.