River Rock Black Marble Pebble Mosaic Tile, 12 x 12 in

Natural marble pebble mosaic tile in a rich black tone, mesh-mounted for easy installation on floors and walls. Each 12-in x 12-in sheet covers 0.96 sq ft and brings spa-like texture to showers, backsplashes, and accents.

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Key Features:

• Natural Marble Pebbles: Genuine stone with smooth, flat river-rock look
• Mesh-Mounted Mosaic: Interlocking 12-in x 12-in sheets for easier alignment and cuts
• Durable, Medium-Traffic Rated: PEI 3 for residential floors and walls, including showers
• Indoor/Outdoor Versatility: Semi‑vitreous stone suitable for many interior areas; seal before and after grouting
• Size & Coverage: 11.81-in x 11.81-in x 10mm thick; 0.96 sq ft per piece

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Specifications Table:

Specification	Details
Manufacturer Color/Finish	River Rock Black
Material	Natural stone (Marble)
Tile Format	Mosaic
Tile Shape	Square (interlocking mesh-mounted sheets)
Actual Length (in)	11.81
Actual Width (in)	11.81
Actual Thickness (mm)	10
Thickness (in)	0.39
Common Size (W x L)	12-in x 12-in
Square Footage per Piece	0.96 sq ft
Edge Type	Beveled
Surface Type	Smooth, natural finish
Shade Variation	V2 (slight variation)
PEI Rating	3 - medium heavy traffic
DCOF	> 0.42
Water Absorption	Non-vitreous / Semi‑vitreous
Use Location	Indoor
For Use on Floors	Yes
For Use on Walls	Yes
For Use in Showers	Yes
For Use with Backsplashes	Yes
For Use with Fireplace Exteriors	Yes
For Use with Countertops	No
For Use with Patios	No
For Use with Pools	No
For Use with Underfloor Heating	Yes
Frost Resistant	No
Installation Type	Thinset mortar
Sealant Required	Yes
Package Quantity	1 piece
Sold As	Piece
Commercial/Residential	Commercial/Residential
Breaking Strength	500–750 lb
ADA Compliant	No
Water Resistant	Yes
Waterproof	Yes
Warranty	None

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Frequently Asked Questions (FAQ):

Q: Is sealing required?
A: Yes. Seal before grouting and again after grouting with a premium penetrating sealer.

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Q: Can this be used on shower floors?
A: Yes, it’s suitable for shower floors and walls; ensure proper waterproofing and sealing.

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Q: What adhesive should I use?
A: Install with thinset mortar over an appropriate substrate.

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Q: Is it safe for high‑traffic areas?
A: It has a PEI rating of 3, appropriate for medium to heavy residential traffic.

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Q: How much does each sheet cover?
A: Each 12-in x 12-in interlocking sheet covers approximately 0.96 square feet.

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Spa-serene texture in inky black

These river-worn marble pebbles bring organic drama to any room, their matte black surface creating a moody, modern backdrop. I love the seamless, interlocking edges that read as a continuous, hand-laid stone bed. Pair it with crisp white marble and warm wood for a chic, sanctuary feel. It’s a small-scale luxury that instantly elevates baths, entries, and feature walls.

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Bring spa-worthy texture home—add these River Rock Black marble pebbles to your cart and transform your next surface in a snap.