Cobalt Blue
Granite · Brazil · 1 photo
In brief. Cobalt Blue is a blue granite from Brazil. Petrographically it is classified as n/a. Texture: medium. 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, flamed, leathered, bush-hammered. Recommended applications: suitable for interior and exterior applications. Blocks reach about 290 × 180 cm. Indicative price: from € 110/m² · polished 2 cm slabs, ex works Carrara, VAT excluded.
AboutTechnical sheetWhere to use itFinishesWeightsCarePhotosFAQ

About Cobalt Blue
Cobalt Blue is a granite quarried in Brazil, with a blue base colour. It is supplied by Marmi di Carrara as blocks, slabs and cut-to-size elements. Typical uses are kitchen worktops, exterior paving and cladding, stairs, high-traffic floors.
Dominant tones measured on our photo
Where to use Cobalt Blue
| Interior floors | Excellent |
|---|---|
| Wall cladding | Excellent |
| Kitchen worktops | Excellent |
| Bathrooms and wet areas | Excellent |
| Exterior paving and façades | Excellent |
| Frost exposure | Excellent |
| Back-lighting | Not suitable |
General guidance for the granite family. The right thickness, finish and treatment for Cobalt Blue 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 Cobalt Blue
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.
Leathered
A brushed texture on hard stones: matt, lightly textured and very good at hiding fingerprints and water marks on worktops.
Bush-hammered
A rough, pitted surface made with a toothed hammer. Maximum slip resistance for exterior paving, ramps and steps.
Flamed
A thermal finish that makes the crystals burst and leaves a rough, non-slip surface. The standard for exterior granite.
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
- 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.
Cobalt Blue photo gallery
Every photo has its own page with tones, details and technical sheet.
Similar stones
Other granite materials in blue tones to compare.


More stones from Brazil
Acqua Verde · Agua Santa · Amarelo Antico · Amarelo Brasil · Amarelo Capri · Amarelo Colonial · Amarelo Icarai · Amarelo Laranjeiras · Amarelo Merouca · Amarelo Ornamental · Amarelo Paraiso Light · Amarelo Paraiso dark · Amarelo Persa · Amarelo Real · Amarelo Selvagem · Amarelo São Francisco · Amarelo São Francisco Real · Amarelo Tombas · Amarelo Veneziano · Amarelo Vicenza · Amazonas Green · Amendoa Missi · Amparo · Améndoa Capixaba · Aquarius Red · As de Paus · Asa Branca · Atibaia · Aves · Azul Bahia · Azul Guanabara · Azul Palmares · Azul Paramirim · Azul Pegaso · Azul Quati · Barracuda · Bege Amendoa · Bege Saara · Bianco Regina · Bianco Rubelita
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 Cobalt Blue come from?
Cobalt Blue comes from Brazil.
How much does a slab of Cobalt Blue weigh?
A 2 cm slab of this stone family weighs about 54 kg per square metre; a 3 cm slab about 81 kg.
Is Cobalt Blue suitable for kitchens and bathrooms?
Typical uses of granite are kitchen worktops, exterior paving and cladding, stairs, high-traffic floors. 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 Cobalt Blue?
The finishes normally used on this stone family are polished, honed, flamed, leathered, bush-hammered. The finish is chosen according to where the stone goes: polished or honed indoors, textured finishes where grip is needed.
Can Cobalt Blue be used outdoors?
For the granite 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 Cobalt Blue?
Use water and a neutral detergent; sealing is quick and recommended on light colours and textured finishes.
How big are the blocks of Cobalt Blue?
Blocks reach about 290 × 180 cm; slab sizes depend on the block actually quarried.
Do slabs of Cobalt Blue 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 Cobalt Blue cost per m²?
Indicative price from € 110/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.
