MSI Cosmic Black Stacked Stone Corner – 6in. x 18in. Natural Marble Ledger Corner Piece

Product Overview Achieve a professional, seamless finish for your stone masonry projects with the MSI Cosmic Black Stacked Stone Corner Piece. Specifically designed to coordinate with the Cosmic Black Ledger Panel collection, these "L-shaped" corner pieces eliminate the need for difficult miter cuts on outside corners. Crafted from genuine marble, Cosmic Black features a sophisticated dark charcoal and carbon-colored base with subtle silvery veins and a split-face texture. Whether you are wrapping a fireplace, an outdoor kitchen, or a structural pillar, these corners provide the rugged, continuous look of authentic stacked stone.

Key Features & Benefits

• Seamless Corner Transitions: The "L" shaped design allows the stone to wrap around 90-degree angles perfectly, hiding the joints and creating a high-end, solid stone appearance.

• Dramatic Cosmic Black Palette: A premium marble selection featuring deep blacks and charcoal tones that add a modern, bold aesthetic to any interior or exterior.

• Dynamic Split-Face Texture: The natural, jagged surface creates a 3D effect that catches light and adds architectural depth to your walls.

• Indoor & Outdoor Versatility: Naturally durable and frost-resistant, making it ideal for everything from living room accent walls to exterior retaining walls and facades.

• Labor-Saving Design: Prefabricated corners save significant time during installation by removing the need for precision diamond-blade cutting at every corner.

Technical Specifications

• Brand: MSI Surface (Rockmount Series)

• Material: Natural Marble

• Color: Cosmic Black (Carbon / Charcoal)

• Dimensions: 6 inches (Height) x 18 inches (Total width of the "L" shape)

• Finish: Split Face (Natural / Textured)

• Thickness: Approx. 0.75" to 1.25"

• Application: Outside Corners for Fireplaces, Pillars, Facades, and Accent Walls

Maintenance & Long-Term Care To maintain the bold intensity of the Cosmic Black marble:

• Sealing: We highly recommend applying a high-quality "Color Enhancing" stone sealer. This will protect the marble from moisture while deepening the black tones for a more dramatic look.

• Dusting: Periodically use a vacuum with a soft brush attachment to remove dust or cobwebs from the textured clefts of the stone.

• Cleaning: Use a pH-neutral stone cleaner and a soft brush. Avoid using acidic cleaners or pressure washers at close range, as they can etch the marble or damage the bond.

• Efflorescence Care: If white mineral deposits appear on exterior installations, use a specialized efflorescence remover and a stiff nylon brush.

Frequently Asked Questions (FAQ)

• Q: How many corner pieces come in a box? A: Most MSI corner pieces are sold by the box, typically containing 4 to 6 pieces. Please check with your supplier for exact carton quantities.

• Q: Do I need to grout the corners? A: No. Like the flat panels, these are designed for "dry-stack" installation. They should be installed tight against the adjacent panels without visible grout lines.

• Q: Can I use these for a kitchen island corner? A: Yes! This is a popular application to add texture and a "built-in" stone look to the base of kitchen islands.

• Q: Is the stone real marble? A: Yes, Cosmic Black is a natural marble. Because it is a natural product, expect variations in the silver veining and the exact shade of charcoal from piece to piece.

What’s Included in the Box?

• 1 x 6x18 Cosmic Black "L-Shaped" Corner Piece

• (Note: Corner pieces are measured by height and the combined length of the two returns).