Cristal Azul
Granite · Portugal · 1 photo
In brief. Cristal Azul is a grey granite from Portugal. Petrographically it is classified as granite. Texture: coarse grained. It is also traded as Cristal Azul, Cristal Branco, Cristal Cinza, Grande Cristal, Guimaraes Cinza. 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 260 × 140 cm.
AboutTechnical sheetWhere to use itFinishesWeightsCarePhotosFAQ
About Cristal Azul
Cristal Azul is a distinctive Portuguese granite known for its coarse, porphyroid texture. This grey stone features prominent feldspar megacrystals that create a unique, crystalline visual rhythm across the surface. Its robust structure makes Cristal Azul ideal for high-traffic flooring, exterior cladding, and durable worktops. The stone accepts polished, honed, or flamed finishes to suit various architectural aesthetics. Marmi di Carrara supplies Cristal Azul in blocks, standard 2/3 cm slabs, and cut-to-size pieces. We provide high-resolution photos of actual slabs before purchase to ensure you select the exact pattern and tone required for your project.
Coarse-grained porphyroid biotite granite, greyish in colour, characterized by the large size and abundance of feldspar megacrystals with generally ill-defined shapes. The rock exhibits a porphyroid texture with a granular hypidiomorphic matrix.
Dominant tones measured on our photo
Where to use Cristal Azul
| 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 Cristal Azul 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 Cristal Azul
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.
Cristal Azul photo gallery
Every photo has its own page with tones, details and technical sheet.
Similar stones
Other granite materials in grey tones to compare.
More stones from Portugal
Brecha Acinzentada · Brecha DA Arrabida · Brecha Portuguesa · Brecha Tavira Amarela · Amarelo Claro · Amarelo Cristal Transmontano · Amarelo DE Felgueiras · Amarelo DE Fonte DE Arcada · Amarelo DO Vimieiro · Amarelo Escuro · Amarelo Esposende · Amarelo Fino · Amarelo Frades · Amarelo Ouro · Amarelo Pardo · Amarelo de Figueira · Amarelo de S. Martinho · Anta · Azul Atlantis · Azul Fino · Azul Transmontano · Azul de Apalhao · Azulalia · Branco Acinzentado DO Douro · Branco Almeida · Branco Ariz · Branco Caravela · Branco Coral · Branco DA Neve · Branco DE Candoso · Branco DO Vimieiro · Branco Pérola · Branco Vimieiro · Branco de Alcains · Branco de Cardoso · Branco do Porto · Cinza Escuro · Cinza Rodrigo · Cinza Telões · Cinzento Alpendurada
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 Cristal Azul come from?
Cristal Azul comes from Portugal.
How much does a slab of Cristal Azul weigh?
A 2 cm slab of this stone family weighs about 54 kg per square metre; a 3 cm slab about 81 kg.
Is Cristal Azul 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 Cristal Azul?
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 Cristal Azul 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 Cristal Azul?
Use water and a neutral detergent; sealing is quick and recommended on light colours and textured finishes.
Is Cristal Azul known by other names?
Yes: Cristal Azul, Cristal Branco, Cristal Cinza, Grande Cristal, Guimaraes Cinza.
How big are the blocks of Cristal Azul?
Blocks reach about 260 × 140 cm; slab sizes depend on the block actually quarried.
Do slabs of Cristal Azul 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 Cristal Azul?
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.