SKU: SKU:TWMBC212
Thassos White & Ming Green Dot 4-3/4" x 2" Polished Marble Bias Border Corner
Thassos White & Ming Green Dot 4-3/4" x 2" Polished Marble Bias Border Corner
(1.0 sq.ft.)
How many tiles do i need?
*We recommend adding an additional 15% to your overall square footage calculations to ensure you have enough coverage for waste and reserve during the installation process.
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Total price: $13.95
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đď¸ THE DESIGN IDENTITY
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The Archetype: The "Grand Chinoiserie Corner" of the Collection.
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The Contrast: Instead of forcing installers to painstakingly hand-miter linear bordersâwhich often leads to chipped stone and mismatched patternsâthis pre-formed corner ensures a flawless 90-degree transition.
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Design Aesthetics: The premier choice for Modern Regency, Grandmillennial, or Classic Mediterraneanframing.
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The Mineral Field: Showcases an ultra-pure, crystalline Thassos White marble background accented by a signature geometric insert of genuine jade-hued Ming Green marble.
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The Visual Flow: Completes the angled bias-cut ribbon layout seamlessly, providing a clean architectural turning point for floors, walls, and backsplash panels.
đˇď¸ PRODUCT TITLE
Premium Stone Series: Thassos White & Ming Green Dot 4-3/4" x 2" Polished Marble Bias Border Corner
đ PRODUCT DESCRIPTION
Achieve absolute architectural precision in your luxury space with the Thassos White Polished Bias Border Corner with Ming Green Dots. Sourced from premier Grecian and Asian quarries, this pre-assembled natural stone accent piece is designed specifically to partner with our linear bias borders. Thassos marble is globally celebrated as the world's purest white stone, offering a brilliant, snow-like crystalline field, while the central Ming Green dot provides an elegant, organic anchor point for sophisticated perimeters.
This specialized corner piece features a precision factory-cut configuration measuring 4-3/4" x 2" x 4-3/4". At a substantial 3/8" (10mm) thick, it aligns perfectly with premium field tiles and heavy stone slabs. The mirror-polished finish enhances the crystalline clarity of the Thassos base and deepens the soothing celadon-green tones of the marble dot, reflecting light beautifully to give your transitions a high-end, custom-tailored look.
⨠KEY FEATURES
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Pre-Formed 90-Degree Turn: Eliminates difficult field miter cuts, saving valuable installation time while guaranteeing a clean pattern match at corners.
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Elite Mineral Contrast: Couples the luminous, snow-white field of authentic Grecian Thassos with the soothing jewel-tones of genuine Ming Green marble.
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Substantial 10mm Profile: Provides the identical thickness and density of premium linear borders and luxury stone slabs for a flush, flat installation.
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Luminous Mirror-Polish: A factory-buffed, high-shine finish that maximizes ambient light reflection and underscores the stone's premium pedigree.
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Pre-Assembled Efficiency: Arrives securely mounted to ensure the bias-cut angles and square stone inserts maintain perfect geometric alignment during setting.
đ SPECIFICATIONS
| Technical Property | Details |
|---|---|
| Collection | Premium Stone Series |
| Material | Authentic Thassos White & Ming Green Marbles |
| Dimensions (Per Piece) | 4-3/4" x 2" x 4-3/4" (L-Shape / Corner Cut) |
| Thickness | 3/8" (10.00 mm) |
| Surface Finish | High-Polished Mirror Finish |
| Design Pattern | Angled Bias Cut Corner with Geometric Dot Insert |
| Application | Shower Wall Corners / Backsplash Frames / Floor Perimeters / Wainscoting Turns |
| Aesthetic / Look | Classical / Bright / Crisp Botanical / Bespoke Trim Work |
đ ď¸ INSTALLATION REQUIREMENTS
â ď¸ CRITICAL: THINSET COLOR & STONE TRANSLUCENCY
Thassos White is a naturally translucent, crystalline stone. You must use an ultra-premium, high-purity White Polymer-Modified Thinset Mortar to set these corners. Using a standard gray mortar, or an inferior off-white adhesive, will bleed into the stone body, permanently turning your brilliant white framing into a cloudy, blotchy gray.
Manufacturer Recommendations
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Recommended Grout: Use a high-quality Non-Sanded Grout in "Pure White" or "Alabaster." A bright, clean grout unifies the joints without drawing attention away from the geometric marble pieces.
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Sealing Mandate: Apply a high-quality solvent-based penetrating sealer to the front and exposed edges beforegrouting to protect the pristine Thassos white areas from absorbing grout pigments, and re-apply a final coat afterthe grout fully cures.
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Substrate Flatness: Ensure the underlying corner framing is completely flat and square to avoid lip-outs (lippage) where the corner piece meets the joining linear border strips.
đĄ PRO INSTALLATION TIPS
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Set the Corners First: When creating a picture-frame border layout on a backsplash or wall panel, always dry-lay and install your corner pieces first. Work your linear border strips outward from the corners to ensure any trimming cuts are hidden symmetrically in the less-visible center runs.
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The Soft Rubber Tap: To prevent cracking the delicate natural marble pieces, do not hit the corner with a bare hammer or push unevenly with your fingers. Press it gently into the wet thinset bed, then tap flat using a clean rubber grout float.
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Non-Abrasive Washing: Use only non-scratch white scrub pads or soft grouting sponges when wiping away excess paste. Standard abrasive sponges can dull or micro-scratch the mirror-polished finish of Thassos marble.
đŹ FREQUENTLY ASKED QUESTIONS
Q: Why do I need to buy a pre-cut corner instead of just miter-cutting a linear border?
A: Natural Thassos marble is highly crystalline and can shatter or chip easily when subjected to complex 45-degree field cuts on a standard tile saw. Pre-cut corners ensure clean, crisp factory edges and guarantee that the Ming Green dot sits perfectly centered in the turn.
Q: Can this polished marble corner piece be used inside a shower niche?
A: Yes, absolutely. It is highly rated for damp or wet vertical wall parameters, including shower borders, niche frames, and bathroom wainscoting trim, provided it is properly sealed.
Q: How many corner pieces should I order for my project?
A: Count the number of 90-degree turns in your border layout. A standard rectangle frame (like a cooktop backsplash frame) requires exactly 4 corner pieces. It is always recommended to order 1 extra piece as a safety backup.
Shade Variation
Shade Variation
Colors and textures may vary slightly between tile batches due to natural manufacturing variations. For a clear representation, we recommend ordering a sample. Learn more.

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Processing & Shipping
- Orders take 48 hours to process and about a week to be delivered depending on your location.
- Orders may come in multiple packages and may be delivered separately.
- All freight orders require a signature at time of delivery.
- All freight orders are delivered curbside.