Cornwall Black Marble
Marble · Canada · photos on request
In brief. Cornwall Black Marble is a black marble from Canada. Marmi di Carrara supplies it as blocks, slabs of 2 and 3 cm, tiles and cut-to-size elements, in the finishes typical of this family: polished, honed, brushed, sandblasted, bush-hammered. Typical uses: flooring, wall cladding, bathrooms, vanity and kitchen tops, stairs, fireplaces, sculpture.
AboutTechnical sheetWhere to use itFinishesWeightsCarePhotosFAQ
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About Cornwall Black Marble
Cornwall Black Marble is a striking natural stone originating from Canada. This marble features a deep, uniform black background with a fine, dense grain structure that offers a sophisticated, monochromatic aesthetic. Its dark tone provides excellent contrast for architectural details and interior design projects. Common applications include flooring, wall cladding, countertops, and decorative accents. The stone accepts various finishes, including polished for a mirror-like sheen or honed for a softer, matte appearance. Marmi di Carrara supplies Cornwall Black Marble in blocks, standard 2 cm and 3 cm slabs, and custom cut-to-size pieces. We provide high-resolution photos of actual slabs to ensure transparency before purchase. Discover the elegance of this Canadian marble in our catalogue.
Cornwall Black Marble is a fine-grained metamorphic rock typically characterized by a deep black background with subtle, lighter mineral inclusions.
Where to use Cornwall Black Marble
| Interior floors | Excellent |
|---|---|
| Wall cladding | Excellent |
| Kitchen worktops | With care |
| Bathrooms and wet areas | Excellent |
| Exterior paving and façades | Good |
| Frost exposure | With care |
| Back-lighting | Limited |
General guidance for the marble family. The right thickness, finish and treatment for Cornwall Black Marble are confirmed on your project.
Weights and logistics
| Thickness (mm) | about 27 kg/m² |
|---|---|
| Thickness (mm) | about 54 kg/m² |
| Thickness (mm) | about 81 kg/m² |
| Thickness (mm) | about 108 kg/m² |
| Thickness (mm) | about 135 kg/m² |
| Slab 300 × 180 cm, 2 cm | about 292 kg |
| Slab 300 × 180 cm, 3 cm | about 437 kg |
| 20-foot container (about 27 t) | about 500 m² of 2 cm slabs |
Weights are calculated from the typical density of the stone family; the packing list of each shipment states the real weight.
Finishes for Cornwall Black Marble
Polished
Mirror-like gloss that brings out colour and veining at full depth. The classic choice for walls, tops and interior floors; slippery when wet.
Honed
Smooth and matt, with a soft satin look. Hides small scratches and etching better than a polish and is safer underfoot.
Brushed
Worked with abrasive brushes for a slightly undulating, silky surface that follows the grain of the stone. Warm to the touch and easy to live with.
Sandblasted
A fine, even roughness obtained with a jet of sand. Lightens the colour and gives grip: used for exteriors, steps and pool surrounds.
Bush-hammered
A rough, pitted surface made with a toothed hammer. Maximum slip resistance for exterior paving, ramps and steps.
Care and maintenance
- Clean with water and a neutral detergent made for natural stone; rinse and dry.
- Avoid acids and descalers (vinegar, lemon, anti-limescale sprays): they etch calcite and dull a polished surface.
- Seal with an impregnating protector after laying and repeat when water no longer beads, typically every 1–3 years on tops.
- Wipe wine, coffee, oil and citrus juice straight away, especially on kitchen and vanity tops.
- A dulled or scratched surface can be re-honed or re-polished on site: the stone is the same through its whole thickness.
How to order
- Send sizes, thickness, finish and destination with the form.
- We reply with photos of the lots available now and a written offer.
- You approve the slabs or the block; for large projects we prepare a dry-lay.
- Cutting, finishing, quality check and packing in wooden crates or bundles.
- Shipping worldwide from Carrara, with packing list and documents.
Photos of Cornwall Black Marble
Natural stone changes from block to block, so we photograph the lots we have in stock at the moment of your request. Send the form with your sizes and we reply with real photographs of the slabs or blocks available.
Similar stones
Other marble materials in black tones to compare.
More stones from Canada
Abbey Rose · Arctic Rainbow · Ash Rose · Astra · Atlantic Black · Atlantic Green · Autumn Basque · Autumn Brown · Battersea Red Granite · Belmont Rose · Belmont Rose Granite · Betchouan · Black Diamond Granite · Butler Grey Granite · Cambrian Black · Canadian Spring Green · Cold Spring Black · Crystal Gold · Crystal Gold Granite · Dalmatian Granite · Dark Rideau Red · Dark Rideau Red Granite · Dark Steel · EL Tigré Granite · Gallix · Lac du Bonnet · Laurentian Green · Laurentian Pink · Light Rideau Red · Mona Lisa · Muskoka Pink · Nordic Green · Oconee · Pine Green · Polichrome · Redditt Brown · Royal Auburn · Vermillion · Adair · Adair Blue-grey Fleuri
Shipping and returns
Shipping cost depends on weight and distance and is stated in the written offer; within Italy it starts from € 300 per shipment. Goods can be returned within 14 days: a 30% restocking fee applies and the return transport is paid by the customer. Pieces cut to size cannot be returned.
Questions and answers
Where does Cornwall Black Marble come from?
Cornwall Black Marble comes from Canada.
How much does a slab of Cornwall Black Marble weigh?
A 2 cm slab of this stone family weighs about 54 kg per square metre; a 3 cm slab about 81 kg.
Is Cornwall Black Marble suitable for kitchens and bathrooms?
Typical uses of marble are flooring, wall cladding, bathrooms, vanity and kitchen tops, stairs, fireplaces, sculpture. For kitchen tops we recommend a suitable finish and sealing: tell us your project and we advise the right solution.
Which finishes can I have on Cornwall Black Marble?
The finishes normally used on this stone family are polished, honed, brushed, sandblasted, bush-hammered. The finish is chosen according to where the stone goes: polished or honed indoors, textured finishes where grip is needed.
Can Cornwall Black Marble be used outdoors?
For the marble family our guidance for exterior paving and façades is: good; for frost exposure: with care. We confirm thickness and finish on your project and climate.
How do I clean and protect Cornwall Black Marble?
Use water and a neutral stone detergent, avoid acids and descalers, and seal the surface with an impregnating protector.
Do slabs of Cornwall Black Marble all look the same?
No. Natural stone changes from block to block and even within the same block. This is why we send photographs of the lots available at the moment of the offer, and book-match slabs from the same block when the design needs it.
How do I get a price for Cornwall Black Marble?
Prices depend on the selection, thickness, finish and quantity. Send the form with your sizes: we reply with photos of the lots available and a written offer.