How to Clean Agate: A Comprehensive Guide
I've been working with Brazilian agate since 2016 — handling thousands of slices, shipping over 10,000 finished pieces, and talking to customers about their walls. And the question I get more than almost any other is some version of: "How do I clean this without ruining it?"
The honest answer is simpler than most guides make it sound. Finished, polished agate wall art is not raw mineral specimen — it doesn't need acid soaks or diamond paste or a Dremel tool. It needs a soft cloth and a little common sense.
Here's everything you actually need to know.
What finished agate wall art is — and isn't
The Brazilian agate in our garlands and wall art sets has already been cut, polished, and sealed by our supplier before it ever reaches our studio. The surface you're looking at — smooth, slightly glossy, with those beautiful banding patterns visible through it — is a finished surface that's been through a professional polishing process.
That's different from raw agate pulled from a riverbed, which does require the intensive cleaning methods you'll find in lapidary forums. If you own finished, decorative agate wall art, you do not need citric acid, vinegar soaks, or abrasive compounds. Using those on a polished piece will dull or damage the surface rather than improve it.
Routine cleaning: what actually works
For regular maintenance — removing dust, fingerprints, or light surface buildup — you need exactly two things: a soft, dry cloth and occasional slightly damp wiping.
For dust: A soft microfiber cloth or a clean, dry paintbrush (like a wide watercolor brush) works beautifully for getting into the edges and natural surface texture of the stone. Dust your agate pieces the same way you'd dust any other art on your walls — gently, without pressure.
For fingerprints or light smudges: Dampen a soft cloth slightly — not wet, just barely damp — and wipe the surface gently. Follow immediately with a dry cloth to remove any moisture. That's it.
For the cord, tassel, and wood accents: These are the parts of an agate garland that actually need more care than the stone itself. Keep them away from moisture entirely. Leather cording can dry out and crack if repeatedly wetted; silk tassels can fray or lose their shape. Dust these components with a dry brush only.
What to avoid — and why
Soaking or submerging: Don't submerge finished agate wall art in any liquid, even water. The stone itself can handle moisture, but the leather cording, wood accents, brass hardware, and silk tassels that make up a finished garland cannot. Soaking will damage the piece even if the stone survives fine.
Harsh chemical cleaners: Glass cleaner, all-purpose spray, bleach, or anything with ammonia can strip the polished surface of finished agate over time and damage the leather and silk components. Avoid entirely.
Abrasive cloths or scrubbing: Paper towels, rough cloths, or scrubbing sponges can scratch a polished agate surface. Microfiber or soft cotton only.
Ultrasonic cleaners: These are sometimes recommended for gemstone jewelry but are inappropriate for finished wall art pieces that include non-stone components.
Direct sunlight for drying: If a piece gets wet for any reason, dry it in a shaded spot. Prolonged direct UV exposure can fade natural stone colors over many years.
What to do if something spills on it
If a garland or wall art set gets splashed — from a nearby vase, a leaky ceiling, whatever — act quickly:
- Take the piece down from the wall immediately
- Blot (don't rub) any liquid from the stone surface with a clean dry cloth
- Let the piece air dry completely in a horizontal position, away from direct heat or sunlight
- Once fully dry, check the leather cording and wood accents — if the leather feels stiff or looks dry after drying, a very small amount of leather conditioner applied with a cloth can help restore it
For most spills caught quickly, the stone will be completely fine. The hardware and cord are the vulnerable parts.
Long-term care: keeping it looking new
Agate is one of the most durable decorative materials you can put on a wall. It doesn't fade, warp, or deteriorate under normal indoor conditions. With basic care, a well-made agate garland should look the same in fifteen years as it does today.
A few habits that help:
Dust monthly. Light, regular dusting prevents buildup that requires more effort to remove later. A two-minute pass with a soft brush once a month is all it takes.
Avoid high-humidity locations. Bathrooms and laundry rooms aren't ideal for leather-corded pieces. The stone is fine; the leather and silk aren't. A bedroom, living room, entryway, or dining room is always a better choice.
Handle by the hanger, not the slices. When taking a piece down or adjusting it, hold the wooden hanger or the hanging hardware — not the individual stone slices. This keeps the cording from being stressed and the slices from being accidentally knocked against each other.
Store carefully if you ever take it down. Lay flat in a box with tissue or bubble wrap between slices. Don't coil or fold the leather cording tightly — let it rest naturally.
A note on natural variation
One thing that surprises some first-time agate owners: the stone can look slightly different depending on the light. A teal slice that glows in afternoon sunlight may look more muted on an overcast day. A warm amber piece may seem to change tone between morning and evening light.
This isn't a flaw or a sign that something needs cleaning — it's one of the things that makes genuine Brazilian agate worth owning. The translucency and light interaction are properties of the stone itself, not surface finish. If your piece looks different at different times of day, it's working exactly as it should.
Jessica Cortes is an interior designer with 14 years of commercial design experience and the founder of Mod North & Co., a handcrafted Brazilian agate wall art studio based in Oconomowoc, Wisconsin. Mod North & Co. helped start the agate garland category on Etsy and was an Anthropologie vendor from 2019 to 2023.
Browse our full collection of Brazilian agate wall hangings, garlands, and wall art sets at modnorth.com.
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