Granite
Black Marinace
Full Service — Installation
Our granite range is available with full supply, templating, fabrication and installation across Portsmouth, Fareham, Gosport, Havant, Waterlooville, Chichester, Southampton and the surrounding area, with our services extending to Hampshire, Sussex, Surrey, Dorset and Berkshire . The reach of our installation service depends on the type of project — contact us to discuss your requirements.
Supply & Fabrication — UK Wide
Outside our installation area? We can fabricate granite to your supplied template, or supply the stone directly as-is — anywhere in the UK . Learn more .
A 1.7 billion-year-old geological wonder — ancient river pebbles frozen in time within a dark matrix, each slab a cross-section through a prehistoric riverbed unlike anything else on Earth.
Black Marinace is not just a granite — it is a geological time capsule. This extraordinary Brazilian stone is actually a 1.7 billion-year-old metaconglomerate: ancient river pebbles that were tumbled smooth by flowing water over millions of years, then gradually cemented together within a dark matrix of minerals and geological pressure. Each polished slab is a cross-section through this prehistoric riverbed, revealing perfectly rounded cobbles in various sizes frozen in time within the black stone — a natural mosaic that no craftsman could ever replicate. The visual effect is utterly unique in the stone world. No two slabs of Black Marinace are the same, because the arrangement of pebbles within the matrix is entirely random — each cobble was deposited by ancient water currents in a unique position. The rounded shapes of the embedded stones create a pattern that is simultaneously organic and geometric, natural and almost designed. It is a surface that invites endless examination, as each viewing reveals new pebble arrangements and mineral details. Black Marinace is a statement of individuality. For homeowners who want a worktop that no one else in the world will have — a genuinely unique piece of geological art — there is no material that delivers on that promise more completely. Limited quarry supply makes it a premium stone, but for those who value absolute uniqueness, Black Marinace is priceless.
Available Finishes
Ideal For
Performance
How This Stone Performs
Hardness
4 out of 5
Stain Resistance
3 out of 5
UV Resistance
5 out of 5
Heat Resistance
5 out of 5
Scratch Resistance
4 out of 5
Interested in Black Marinace?
Love this stone?
Get a free, no-obligation quote for Black Marinace granite. From template to installation, In2stone handles everything — so you can enjoy your new surface without the stress.
Frequently Asked
Questions About Black Marinace
Is Black Marinace actually a granite?
How old is Black Marinace granite?
Why is Black Marinace granite so expensive?
Can Black Marinace granite be used for a kitchen island?
Are the pebbles in Black Marinace granite visible to the eye?
"We decided to get bespoke granite work tops for our new kitchen and have to say that we are over the moon with them. From the outset, Ian was very professional when selecting the stone, he listened to what we wanted, went through all of the possibilities that we could have for our worktops and went through the process in detail once we had made a decision. The templateing and fitting was carried out by an incredibly professional and helpful team run by Kev, who knew exactly what they were doing and just got on and made my kitchen look amazing. I would highly recommend In2stone for a helpful, knowledgeable and professional service from start to finish."— Nicky HavardGoogle Review
Why Choose Us
Why In2stone
Invisible Joins & Ogee Edging
The edge profiles and seamless joins other suppliers say they can't do? We do them every week.
"Other quartz suppliers weren't able to offer the ogee edging I wanted — In2stone could."
Olivia Tett
The Quote Is the Price
No hidden costs, no surprises. We consistently beat competitor quotes — even online discounters decline to match us.
"Beat 6 other companies by a mile. Even an online company that claims to beat any quote declined to."
Dean Fitzpatrick
Ian Answers the Phone
No answering machines or sales scripts. You'll speak to the people who'll actually work on your project.
"Ian always answered the phone or called me back — and that was before we even decided to use him."
Carly Rielly
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