
Photo for reference. Natural stone varies from slab to slab, so we confirm the actual slab before cutting.
River Blue
River Blue Marble with black, blue, brown, gray and white tones for countertops, vanities and more in Charleston, SC.
Additional information
| Material |
Marble |
|---|---|
| Finish |
Polished |
| Color |
White, Brown, Blue, Grey, Black, Mixed |
| Also known as |
Fantasy Blue |
| Level |
B |
- Free estimate
- Template, cut & install
- Charleston, SC
Discover River Blue Marble, a natural metamorphic stone valued for its classic elegance and soft, luminous surface. It shows black, blue, brown, gray and white tones and noticeable natural movement. It is also sold as Fantasy Blue.
Look and Character
As with any natural stone, each River Blue slab has its own pattern and color variation. Seeing the full slab in person is the best way to pick the perfect one for your project. It is available here in a polished finish.
Best Uses
Use River Blue marble for bathroom vanities, shower walls, fireplace surrounds, backsplashes and elegant kitchen countertops. For a balanced design, combine it with neutral cabinetry, warm woods and both brushed and polished metal finishes.
Care and Maintenance
Marble is softer and more porous than granite, and acidic liquids such as lemon juice, wine or vinegar can etch the surface. Seal it regularly, wipe spills right away and clean with a pH-neutral stone cleaner.
Explore more options in our marble collection, or contact Stonphase to see full slabs and get a quote for your countertop project in Charleston, SC.
River Blue at a Glance
| Material | Marble (natural stone) |
|---|---|
| Hardness | About 3 to 4 on the Mohs scale |
| Heat resistance | Moderate |
| Scratch resistance | Low to moderate |
| Stain resistance | Fair once sealed; etches with acids |
| Sealing | Every 6 to 12 months |
| Finish | Polished |
| Typical thickness | 2 cm or 3 cm slabs |
| Colors | White, Brown, Blue, Grey, Black, Mixed |
| Price group | B |
| Also known as | Fantasy Blue |
Pros and Considerations of Marble
Pros
- Timeless, elegant veining
- Stays cool to the touch, ideal for baking
- Develops a soft patina over time
Considerations
- Etches with lemon, vinegar and wine
- Softer and more prone to scratches
- Needs more frequent sealing and care
Design Pairings
River Blue pairs well with white, navy, sage green or natural wood cabinets. Brass and matte black hardware both work, and a simple white or subtle tile backsplash lets the stone lead.
Countertops for Lowcountry Homes
We template, fabricate and install River Blue countertops for kitchens, islands, bathroom vanities and more across Charleston, SC, including Johns Island, Summerville and James Island. Visit us to see full slabs, or send us your measurements for a free estimate.
River Blue FAQ
Is River Blue Marble good for kitchen countertops?
It works well in kitchens if you are comfortable with some etching and patina over time; many homeowners choose it for vanities, islands and baking areas.
Does Marble need to be sealed?
Yes. Marble should be sealed more often, usually every 6 to 12 months. Sealing helps with stains but does not prevent etching from acidic foods.
How does River Blue Marble compare with quartzite?
Marble offers the classic look but is softer and etches with acids; quartzite gives a similar look with much higher durability.
Can I see the actual River Blue slab, and do you serve Johns Island and Summerville?
Yes. Natural and engineered surfaces vary by lot, so we help you see the actual slab before fabrication. Stonphase serves Charleston, SC and nearby areas including Johns Island, Summerville and James Island.
Request a stone countertop quote in Charleston, SC
Send us the look you liked and a rough idea of the space. A photo of your cabinets or a simple sketch with measurements is enough to start.
Talk to a stone specialist
We reply with availability, options in your budget and a written price.




