Polar Thassos White 12x24 honed marble tile from TILE AND MOSAIC DEPOT, showcasing smooth, polished white natural stone surface.
Polar Thassos White 12x24 honed marble tile, natural stone tile with smooth surface, showcasing elegant white marble for flooring or walls.

Polar Thassos White 12x24 Honed Marble Tile

PWM12X24H0181

SAMPLES SHIP FREE WITHIN 1–3 BUSINESS DAYS
$12.75 / sq. ft.
$25.50 / Piece
QUANTITY
SOLD BY: sq ft Minimum: 50 sq. ft.
Minimum order: 50 sq. ft.
TOTAL PRICE:
Samples ship free · Fast nationwide shipping · 30-day returns
Order your full amount plus 10% at once — reorders may vary in tone and veining. Shipping damage is covered with photos; small shortages (1–5 pieces) are refunded, NOT reshipped, so the extra 10% protects you.
Polar Thassos White Marble 4x12 polished tile showing pure crystalline white with virtually no veining — Tile & Mosaic Depot

Polar Thassos White Marble

Polar Thassos White Marble — the purest, most brilliant white marble available. Crystalline white with virtually no veining in tile and mosaic formats. The definitive choice for luxury bathrooms, spa spaces, and high-end kitchen applications. Free sample shipping.
Ships in 2–3 Days
Free Sample Shipping
Nationwide Delivery
Premium Natural Stone
Secure Packaging

Polar Thassos White is a pure crystalline marble sourced from the island of Thassos in the Aegean Sea — one of the world's most prized white stone deposits. Its nearly snow-white body, micro-glittering calcite crystals, and minimal veining set it apart from other white marbles, making it the preferred choice for designers seeking an uncompromising, bright white aesthetic.

Finished with a smooth honed surface, this 12×24 tile delivers a silky matte appearance that feels refined and inviting rather than glossy — ideal for surfaces where slip resistance and a spa-like calm are priorities. The large format reduces visible grout lines, allowing the tile's luminous whiteness to dominate the surface and create a seamless, architectural statement.

Best suited for bathroom walls, shower surrounds, feature walls, and low-traffic interior floors, this tile performs beautifully in both residential and commercial luxury settings. Because Thassos is a particularly dense, white marble, it is highly recommended to seal it thoroughly before and after grouting, and to use white thinset and white grout to preserve its pure tone — ordering a sample is advised to experience its brilliance in your own lighting.

Material Natural Marble
Color Pure White
Type Field Tile
Tile Size 12 × 24 inches
Finish Honed
Sold By Per Sq. Ft.
Application Floor & Wall (Indoor)
Shade Variation V1 — Uniform
Design Contemporary / Transitional
Country of Origin Europe
✓ Bathroom Walls & Shower SurroundsSeamless white coverage with minimal grout lines
✓ Spa & Wet Room FloorsHoned finish provides grip and serene aesthetic
✓ Feature & Accent WallsLarge format creates bold, luminous statement
✓ Master Bath FlooringBright white expands and brightens interiors
— Unsealed Wet AreasMust be sealed before use; re-seal annually in wet zones
— High-Traffic Commercial FloorsSofter stone — not recommended for heavy foot traffic

Free Shipping: This product ships at standard freight rates calculated at checkout based on your location and order size.

Processing & Delivery: Orders are processed within 2–3 business days. Large orders ship via LTL freight — curbside delivery only. An adult must be present to sign for delivery. Estimated transit: 2–10 business days after shipment.

30-Day Returns: Uninstalled tile may be returned within 30 days of delivery. Inspect all tile carefully before installation — installed tile cannot be returned or exchanged. Samples are final sale.

Exclusions: Free shipping does not apply to Hawaii, Alaska, U.S. territories, or international addresses. Additional charges may apply for remote delivery areas.

Sealing: Thassos White is a dense but highly porous crystalline marble that requires thorough sealing before installation and again after grouting. Apply a premium penetrating stone sealer and re-seal every 12 months in bathrooms and wet areas, or every 6 months in shower floors and steam rooms. Because of its pure white color, any unsealed exposure to colored grout, soap, or minerals will cause visible staining.

Cleaning: Clean with a pH-neutral stone cleaner and a soft microfiber cloth or mop — never use acidic cleaners (vinegar, citrus), bleach, or abrasive scrubbers, as these will etch and dull the honed surface. Wipe up spills immediately, especially anything acidic like shampoo, body wash, or hard water, which can leave spots on the bright white surface. For routine maintenance, warm water and a stone-safe cleaner are all that is needed.

Installation: Always use white thinset mortar with Thassos White to prevent any gray or tan bleed-through on this bright white stone. Use white non-sanded or sanded grout depending on joint width, keeping joints at 1/16" to 1/8" for a near-seamless look. Back-butter each tile in addition to applying thinset to the substrate for full coverage on large-format pieces, and ensure the substrate is flat to within 1/8" over 10 feet to prevent lippage.

Important: Inspect all tile before installation. Variations in color, veining, and texture between pieces are natural characteristics of genuine stone — not defects. Order 10% overage for cuts, waste, and future repairs. Tile & Mosaic Depot specialists are available M–F 8:30AM–5PM PST at 855-797-8453.
Why Tile & Mosaic Depot

The natural stone specialists

Quarry-Direct Pricing

We buy direct from the source and skip the middleman, so you get showroom-quality stone for less.

Huge Stone Selection

Marble, travertine, limestone, porcelain and more — thousands of tiles, mosaics, and slabs in one place.

Expert Stone Support

Talk to real natural-stone specialists, M–F 8:30AM–5PM PST, at 855-797-8453 or via live chat.

Easy 30-Day Returns

Uninstalled tile can be returned within 30 days. Order with full confidence.




Why Order a Sample
A screen can't show you how Calacatta veining reads under your kitchen lights or how a porcelain finish sits next to your cabinet color. A sample can. It's the single best way to buy stone or porcelain tile with confidence — and the cheapest mistake you'll ever avoid.

How It Works
Samples are $7.99 each. Samples ship free and leave our warehouse within 1–3 business days. Sizes vary by material and availability — typically 3"×3" up to 8"×8" — and every sample is cut from the same material stocked for full orders.

What a Sample Shows
Color, texture, finish, and overall character. Because natural stone varies piece to piece, one sample represents the material but can't show the full range of a lot. Porcelain samples are highly representative of the production run. Want to see the current lot before you commit? Ask us — we'll send photos.

Good to Know

  • Samples are final sale — non-returnable and non-refundable.
  • We recommend sampling before every full order, especially for natural stone.
  • Larger or custom quantity? Contact us for a tailored quote.

Talk to a Specialist
Our stone and tile specialists will help you narrow it down. Call (855) 797-8453 or email sales@tileandmosaicdepot.com, Monday–Friday, 8:30 AM–5 PM PT.

How Your Order Ships
In-stock orders leave our warehouse within 2–3 business days. Stone, porcelain, and mosaic ship on a pallet via scheduled LTL freight and arrive 2–10 business days after dispatch, depending on destination. You'll get tracking and the carrier's name by email the day it ships.

Freight Delivery — What to Expect

  • The carrier calls you first. Every freight delivery is by appointment. Expect a call or text to set a window before the truck is dispatched.
  • Curbside delivery. The driver unloads to the curb or driveway. Freight does not include carrying material indoors or into a garage — plan for a helper or a hand truck.
  • Someone 18+ must sign. Inspect the pallet before signing. Note any damage, shortage, or broken shrink-wrap on the delivery receipt — this is what makes a claim valid.
  • Truck access. The address must be accessible to a full-size freight truck with enough space to unload.

Free Shipping
Free curbside freight on qualifying mosaic and molding orders over $1,999 in the continental U.S. Field tile, porcelain, and other product types ship at freight rates shown at checkout. Not available to Hawaii, Alaska, U.S. territories, or international addresses.

Damage & Shortages
Report within 3 calendar days of delivery with photos of the pallet, packaging, and affected pieces to sales@tileandmosaicdepot.com. Verified claims are covered. Shortages of 1–5 pieces are refunded rather than reshipped — which is why we recommend ordering 10% overage.

30-Day Returns
Uninstalled tile in full, unopened boxes may be returned within 30 days of delivery. Return freight is paid by the customer. Partial boxes, opened boxes, installed material, and samples are final sale.

Questions Before You Order?
Call (855) 797-8453 or email sales@tileandmosaicdepot.com, Monday–Friday 8:30 AM–5 PM PT. If you're unsure about freight access at your address, ask us before checkout — we'll flag anything that could hold up delivery.

Natural Variation
Quarried stone varies in color, veining, shade, movement, and finish from piece to piece and from lot to lot. Screen photos and samples show the range, not the exact tile you'll receive. Variation is the nature of the material and is never grounds for return. Porcelain is far more consistent, but shade and pattern can still shift between production runs — buy your full quantity in one order.

Before You Install

  • Order 10% overage. Covers cuts, breakage, and spares for future repairs. Reorders may not match in tone or lot.
  • Inspect every piece before setting. Pull from all boxes, blend, and dry-lay the full area. Installation is acceptance — no claims are honored once tile is set.
  • Hire a qualified installer. Natural stone and large-format porcelain require experience with the material. Your installer is responsible for substrate, setting materials, and method.

Sealing & Care
Natural stone should be sealed with a penetrating sealer and re-sealed periodically in wet and high-traffic areas. Clean with a pH-neutral stone cleaner only — vinegar, bleach, ammonia, and acidic cleaners etch marble, limestone, travertine, and onyx permanently. Porcelain does not require sealing. Outdoor stone weathers and shifts in tone over time; this is expected.

Responsibility
Tile & Mosaic Depot supplies material only. We are not responsible for installation, labor costs, substrate conditions, setting materials, product misuse, or damage from handling, sealing, maintenance, or chemicals. No claims, returns, or replacements are accepted on installed material.

California Proposition 65
Some natural stone and porcelain products contain substances known to the State of California to cause cancer or reproductive harm. Details at www.P65Warnings.ca.gov.

The Natural Stone & Porcelain Tile Specialists

Direct from the Producers

We buy directly from the mills and factories that cut and finish our tile, so pricing stays sharp and lots stay consistent.

Samples Ship Free

$7.99 per sample with no shipping charge, shipped within 1–3 business days. See the current material before you commit.

Ask a Specialist

Email us anytime with a question about our products at sales@tileandmosaicdepot.com. We'll get back to you during our business hours, Mon–Fri 8:30 AM–5 PM PT.

30-Day Returns

Uninstalled tile in full, unopened boxes may be returned within 30 days. No partial returns. Order with confidence.

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