Royal Coffee Granite is a medium to coarse-grained natural stone known for its striking appearance with blue and brown coffee-like tones complemented by pearly flecks. It is quarried in Weihai, Rongcheng City, Shandong Province in China. This granite is popular for its aesthetic appeal and durability, making it suitable for various architectural and decorative applications.

Physical and Mechanical Properties:

• Water Absorption: 0.28%
• Density: 2720 kg/m³
• Flexural Strength: 10.5 MPa
• Compressive Strength: 184.0 MPa
• Hardness: Typically falls within 6-7 on the Mohs scale, common for granite.
• Porosity: Low, contributing to its durability and resistance to stains and moisture.
• Slip Resistance: Generally good, but it can vary depending on the finish applied. Rough finishes like flamed or bush-hammered provide better slip resistance.

Chemical and Mineral Compositions (% by Weight):

• Quartz: ~25-35%
• Feldspar (Alkali feldspar): ~30-40%
• Plagioclase Feldspar: ~15-25%
• Biotite and/or Hornblende (Mica): ~5-10%
• Trace Elements: Such as iron oxide, which can affect the coloration.
• Others: Minor amounts of other minerals that can contribute to the unique coloration and characteristics.

Usage:

• Interior Applications: Kitchen countertops, backsplashes, bathroom vanities, and fireplace surrounds.
• Exterior Applications: Cladding, paving, and outdoor kitchen countertops.
• Decorative Uses: Wall panels, flooring tiles, and intricate stone carvings.

Maintenance:

• Regular Cleaning: Use mild soap and water. Avoid acidic or abrasive cleaners.
• Sealing: Due to its low porosity, sealing is not always necessary but can be done to enhance stain resistance.
• Avoiding Damage: Use cutting boards to prevent scratches and trivets to protect from heat.

Cutting Sizes (cm):

• Common sizes: 60x60, 30x60, 60x120
• Custom sizes are available based on project requirements.

Available Common Surface Finish Options:

• Polished: Enhances the natural color and pattern, offering a glossy finish.
• Honed: Provides a smooth, matte finish without reflections.
• Flamed: Rough texture with slip resistance, ideal for outdoor applications.
• Bush-hammered: Textured finish increases slip resistance.
• Leathered: Soft sheen and textured feel, less than polished but more than honed.

Royal Coffee Granite's unique color palette, combined with its desirable physical properties, makes it a popular choice for both residential and commercial projects worldwide. It's important to select the appropriate finish for the specific use to optimize performance and appearance.