Onyx
Black
Full Service — Installation
Our onyx 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 onyx to your supplied template, or supply the stone directly as-is — anywhere in the UK . Learn more .
A mosaic of deep charcoal and olive-black tones, with creamy ivory and intricate agate-like rings revealing ancient geological artistry on a polished surface.
Black Onyx presents a dramatically bold aesthetic, featuring deep charcoal and olive-black tones interwoven with striking concentric ring formations and creamy ivory patches. The polished surface masterfully reveals extraordinary agate-like circular patterns with layered banding in grey, brown, and black, creating a mesmerizing fossil-like organic aesthetic. This ancient beauty is both deeply luxurious and utterly unique, with patterns that draw the eye deeper into each layer of its extraordinary formation.
Hailing from natural stone quarries in Turkey, our Black Onyx is a form of banded calcite. It’s a testament to geological artistry, formed over millennia as mineral-laden spring or groundwater slowly deposits layers of calcium carbonate. Each delicate layer, capturing different trace mineral impurities, contributes to the distinctive banding and rich colour palette that makes every slab truly unique, telling a story of the earth's patient formation.
At In2Stone, we appreciate the exceptional visual impact of Black Onyx. Due to its calcium carbonate composition and relative softness (Mohs 3-4), it's a material best suited for statement areas where its beauty can be admired without constant heavy impact. Think luxurious bathroom vanity tops, striking splashbacks, elegant breakfast bars, or breathtaking feature walls. We approach every Black Onyx project with passion and meticulous craftsmanship, ensuring precise templating and expert installation. We also provide honest guidance on its care – regular sealing and avoiding acidic cleaners are key to preserving this exquisite stone, reflecting our commitment to both luxury results and lasting beauty.
Available Finishes
Ideal For
Also Suitable For
Performance
How This Stone Performs
Hardness
2 out of 5
Stain Resistance
2 out of 5
UV Resistance
3 out of 5
Heat Resistance
3 out of 5
Scratch Resistance
2 out of 5
Interested in Black?
Love this stone?
Get a free, no-obligation quote for Black onyx. From template to installation, In2stone handles everything — so you can enjoy your new surface without the stress.
Frequently Asked
Questions About Black
What gives Black Onyx its unique visual appeal?
What design styles best complement Black Onyx worktops?
How durable is Black Onyx, and what special care does it require?
Where does In2Stone's Black Onyx come from, and how is it formed?
Is Black Onyx a suitable alternative to black granite or quartz?
"Excellent Service and Beautiful Results - Highly Recommended! I recently had In2stone install new quartz worktops in my kitchen, and I couldn't be happier with the results. From start to finish, the experience was completely stress-free. The team was not only competitively priced but also incredibly friendly and professional throughout the entire process. They handled everything seamlessly - removing the existing sink, hob, and old laminate worktops before fitting the new quartz surfaces. The finished worktops are absolutely beautiful and have transformed my kitchen into a modern, minimalist space that I love spending time in. The quality of workmanship is outstanding, and the attention to detail really shows. I'm a very satisfied customer and would highly recommend In2stone to anyone considering new worktops. Well done to the entire team - you've exceeded my expectations!"— Ashley ChapmanGoogle 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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