Black Slate

Slate · Egypt · 1 photo

In brief. Black Slate is a black slate from Egypt. Petrographically it is classified as slate. 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: natural cleft, honed, brushed. Recommended applications: suitable for interior and exterior applications. Blocks reach about cleavage. Indicative price: from € 120/m² · polished 2 cm slabs, ex works Carrara, VAT excluded.

AboutTechnical sheetWhere to use itFinishesWeightsCarePhotosFAQ

Black Slate slate polished sample – Marmi di Carrara – black (1)
Black Slate slate – polished sample photo 1

About Black Slate

Black Slate is a natural slate quarried in India, renowned for its deep, uniform black colour and smooth, fine‑grained texture. The stone presents a sleek, matte surface with subtle linear veining that adds depth without compromising its solid appearance. It is widely used for interior flooring, wall cladding, bathroom vanity tops and outdoor paving where a sophisticated dark tone is desired. Suitable finishes include honed, polished or brushed, depending on the design intent. Marmi di Carrara supplies Black Slate in blocks and slabs of 2–3 cm thickness, offers cut‑to‑size services and provides photos of actual slabs before purchase.

Typically a fine‑grained black slate with uniform colour.

Dominant tones measured on our photo

black 100%

Black Slate in our stone atlas →

Where to use Black Slate

Interior floorsExcellent
Wall claddingExcellent
Kitchen worktopsGood
Bathrooms and wet areasExcellent
Exterior paving and façadesExcellent
Frost exposureExcellent
Back-lightingNot suitable

General guidance for the slate family. The right thickness, finish and treatment for Black Slate are confirmed on your project.

Weights and logistics

Thickness (mm)about 28 kg/m²
Thickness (mm)about 56 kg/m²
Thickness (mm)about 84 kg/m²
Thickness (mm)about 112 kg/m²
Thickness (mm)about 140 kg/m²
Slab 300 × 180 cm, 2 cmabout 302 kg
Slab 300 × 180 cm, 3 cmabout 454 kg
20-foot container (about 27 t)about 480 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 Black Slate

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.

Natural cleft

The stone is split along its natural layers and left as it is: a lively, riven surface with excellent grip.

Care and maintenance

  • Clean with water and a neutral detergent; hard stones tolerate everyday use very well.
  • Sealing is quick and recommended on light colours and on honed, leathered or flamed finishes.
  • Avoid waxes and film-forming products that leave a layer on the surface.
  • Outdoors, an occasional wash with a pressure cleaner at moderate pressure restores the colour.
  • Hot pans, knives and frost are not a problem for most stones of this family; use trivets anyway to protect sealers.

How to order

  1. Send sizes, thickness, finish and destination with the form.
  2. We reply with photos of the lots available now and a written offer.
  3. You approve the slabs or the block; for large projects we prepare a dry-lay.
  4. Cutting, finishing, quality check and packing in wooden crates or bundles.
  5. Shipping worldwide from Carrara, with packing list and documents.

Black Slate photo gallery

Every photo has its own page with tones, details and technical sheet.

Similar stones

Other slate materials in black tones to compare.

More stones from Egypt

Brown Qussair · Charme Yellow · Fawaqir · Gazel Valley Yellow · Giallo Special · Green Breccia MLB · Green Breccia MNA · Grey Dahab · Guandona · Nero Aswan · Red Breccia · Rosa Aswan Dark · Rosa Aswan Light · Rosa Aswan Medium · Rosa El Nasr · Rosa El Shayeb · Rosa Hurghada · Royal Red · White Halayeb · White Safaga · Botcino · Galala · Galala Beige · Giallo Cleopatra · Samaha · Silvya · Sinai Pearl · Verde Alaki · Alabastro Beni Suef · Black Porphyry · Green Slate · Grey Slate · Multicolour Slate · Pearl Slate · Red Porphyry

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 Black Slate come from?

Black Slate comes from Egypt.

How much does a slab of Black Slate weigh?

A 2 cm slab of this stone family weighs about 56 kg per square metre; a 3 cm slab about 84 kg.

Is Black Slate suitable for kitchens and bathrooms?

Typical uses of slate are roofing, flooring, wall cladding, tabletops. 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 Black Slate?

The finishes normally used on this stone family are natural cleft, honed, brushed. The finish is chosen according to where the stone goes: polished or honed indoors, textured finishes where grip is needed.

Can Black Slate be used outdoors?

For the slate family our guidance for exterior paving and façades is: excellent; for frost exposure: excellent. We confirm thickness and finish on your project and climate.

How do I clean and protect Black Slate?

Use water and a neutral detergent; sealing is quick and recommended on light colours and textured finishes.

How big are the blocks of Black Slate?

Blocks reach about cleavage; slab sizes depend on the block actually quarried.

Do slabs of Black Slate 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 much does Black Slate cost per m²?

Indicative price from € 120/m² for polished 2 cm slabs, ex works Carrara, VAT excluded. The final figure depends on selection, thickness, finish and quantity: send the form with your sizes and we reply with photos of the lots available and a written offer.

See Black Slate in your own room with the Marble Engine

Virtual mock-ups of floors, kitchens, bathrooms, walls and stairs, slab layout, quantity and weight calculators and more: tradition, quality and technology from Marmi di Carrara.

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