Fossil Brown Limestone 18x18 natural stone tile with a polished surface, showcasing earthy brown tones and fossilized patterns.

Fossil Brown Limestone 18x18 Polished Tile

FB18X18TT0518

SAMPLES SHIP FREE WITHIN 1–3 BUSINESS DAYS

$10.95 / sq. ft.

$24.64 / Piece

QUANTITY

SOLD BY: sq ft Minimum: 50 sq. ft.

Sq. Ft.

pieces

Minimum order: 50 sq. ft.

Add 10% more to cover cuts and waste (recommended)

TOTAL PRICE:

—

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.

Fossil Brown Limestone

Fossil Brown limestone — warm brown natural limestone with fossil character in leathered and polished tiles. An earthy stone for floors and walls.

About Fossil Brown Limestone 18×18 Polished Tile

Material Education

Fossil Brown is a rich, warm-toned limestone quarried in the Middle East, prized for its deep chocolate and mocha hues interlaced with naturally embedded fossil impressions and subtle cream veining. The polished finish enhances the stone's earthy depth, bringing out a low-luster sheen that highlights the organic fossil inclusions and tonal variation across each tile. Its dense, sedimentary composition gives it a grounded, tactile quality unlike most marbles or granites.

As a product of nature, each tile will display its own unique arrangement of fossils, swirls, and color shifts — these variations are the hallmark of authentic natural limestone, not imperfections.

About this tile: This 18×18 polished field tile offers a generous format ideal for flooring and feature walls, with the larger surface area showcasing the stone's dramatic fossil patterns to full effect. Its polished face delivers a smooth, easy-to-clean surface while preserving the natural character of the stone.

Design & Inspiration

Fossil Brown's warm chocolate, mocha, and cream palette pairs beautifully with brushed brass or bronze fixtures, dark walnut cabinetry, and soft white or linen wall tones, lending itself naturally to transitional, Mediterranean, and organic-modern interiors. Its earthy depth also complements terracotta accents, aged leather furnishings, and woven natural textiles.

The 18×18 format lays with minimal grout lines across larger floors, creating a sweeping, cohesive surface that amplifies the stone's fossil-rich storytelling. On feature walls or fireplace surrounds, the polished surface adds a refined, gallery-like quality without feeling cold or stark.

Popular design combinations: Fossil Brown 18×18 floor tile paired with a cream travertine baseboard and brushed brass plumbing fixtures for a warm, spa-inspired bathroom. Explore the full Limestone collection for coordinating sizes, and browse more natural stone tile for complementary looks.

Ships in 2–3 Days

Free Sample Shipping

Nationwide Delivery

Premium Natural Stone

Secure Packaging

Fossil Brown Limestone is a naturally dense sedimentary stone sourced from the Middle East, celebrated for its warm chocolate and mocha tones punctuated by genuine fossilized shell and coral impressions embedded over millions of years. The 18×18 format provides a generous canvas that lets the stone's organic artistry speak at full scale.

The polished finish on this tile enhances the natural color depth and brings a smooth, reflective quality to the surface that makes fossil details pop with clarity. Large-format straight-set installation minimizes grout lines and creates a seamless, flowing floor or wall surface that feels both luxurious and grounded.

Fossil Brown 18×18 polished tile is an excellent choice for bathroom floors, entryways, kitchen floors, and accent walls where its unique fossil character can be appreciated up close. As a clearance or specialty item, we recommend ordering samples before committing to a full project to confirm the color and variation suit your design vision.

Material	Natural Limestone
Color	Chocolate Brown, Mocha, Cream
Type	Field Tile
Tile Size	18 × 18 inches
Finish	Polished
Sold By	Per Sq. Ft.
Application	Floor & Wall (Indoor)
Shade Variation	V3 — Moderate Variation
Design	Transitional / Mediterranean / Organic Modern
Country of Origin	Europe

✓ Bathroom FloorWarm tones create a spa-like retreat

✓ Entryway & FoyerDramatic fossil patterns make a bold first impression

✓ Kitchen FloorDurable surface handles high-traffic areas well

✓ Fireplace SurroundFossil details shine as a polished feature wall

— Wet or Outdoor UsePolished limestone can be slippery when wet; seal thoroughly and use non-slip mats in wet zones

— Unsealed InstallationMust be sealed before grouting and use to protect porous surface from staining

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: Fossil Brown Limestone is a porous stone that must be sealed before installation and grouting. Apply a penetrating stone sealer and allow full cure time before exposing to moisture. In bathrooms and kitchens, reseal every 12–18 months to maintain stain resistance. The polished finish offers some surface density but does not eliminate the need for sealing.

Cleaning: Clean with a pH-neutral stone cleaner diluted in warm water and a soft mop or microfiber cloth. Avoid acidic cleaners (vinegar, citrus-based products), bleach, and abrasive scrubbers, which will etch and dull the polished surface. Wipe up spills — especially oils, wine, and acidic liquids — promptly to prevent staining. Avoid steam cleaners on polished limestone.

Installation: Use a white or gray polymer-modified thinset mortar appropriate for natural stone. Back-butter each tile in addition to applying thinset to the substrate to ensure full contact and prevent lippage on the 18×18 format. Use tile spacers sized at least 1/16" to maintain consistent joints. Allow thinset to cure fully before grouting, and use a sanded grout matched to the stone's warm tones. Avoid installing over substrates with excessive flex or deflection.

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.