Crystals pick up dust, fingerprints and the odd mark just like anything else on a shelf or windowsill. Many people also like to "cleanse" their stones now and then as a small ritual of renewal. The tricky part is that not every crystal likes water, and a well-meaning rinse can dull, scratch, rust or even dissolve some of them.
This guide covers both kinds of care: how to physically clean your crystals safely, which stones are generally fine with a quick rinse, which ones are best kept dry, and a few gentle, water-free traditions for refreshing them.
Cleaning vs. cleansing
It helps to separate two ideas. Cleaning is practical: removing dust, oils and grime so your stones look their best. Cleansing is a spiritual tradition: many people believe crystals hold on to energy and like to refresh them with moonlight, sound or smoke. You can do one, both or neither. Cleaning is about the stone's surface; cleansing is about intention.
Why some crystals shouldn't go in water
Crystals are minerals, and minerals vary a lot. Some are very soft, some are porous, some contain iron that can rust, and a few are actually soluble in water. A common rule of thumb is that stones below about 5 on the Mohs hardness scale are better kept dry, though hardness isn't the whole story, since porosity and mineral makeup matter too.
Treatments matter as well. Many stones sold today are dyed, stabilized, waxed or glued, and water or soap can affect those finishes even when the stone itself is tough.
Not sure what you have? Treat any stone you can't identify, or any stone you think might be dyed or treated, as water-sensitive. A dry soft cloth is always a safe choice.
Generally water-safe stones (for a quick rinse)
Most members of the quartz family are hard (about 7 on the Mohs scale) and non-porous, so a brief rinse in lukewarm water is generally fine for polished, untreated pieces:
- Clear quartz
- Amethyst
- Rose quartz
- Smoky quartz
- Citrine
- Agate, carnelian and jasper (forms of chalcedony and quartz)
Even with these, keep it quick. Skip long soaks, salt water and hot water, and avoid sudden temperature changes, which can crack stones with internal fractures. Raw clusters still attached to rock, geodes, and dyed agates are best wiped or brushed dry instead.
Water-sensitive stones (keep these dry)
These are commonly advised against soaking or rinsing. To be safe, clean them with a dry soft cloth or brush only:
- Selenite: a very soft form of gypsum that is slightly soluble. Water can dull, pit or damage its surface.
- Halite: rock salt. It dissolves in water.
- Malachite: soft and porous, and it contains copper. Keep it dry, never use it in drinking water, and don't sand or file it.
- Pyrite and hematite: iron-bearing minerals that can tarnish or rust with moisture.
- Turquoise and lapis lazuli: porous, often treated, and prone to discoloring.
- Opal: sensitive to soaking and temperature changes, and often glued into doublets or triplets.
- Celestite, calcite and fluorite: soft and easily scratched or damaged. A dry brush is safest.
This isn't a complete list. If a stone isn't named here, look it up or simply keep it dry.
How to physically clean your crystals
For water-safe stones
- Brush off dust with a soft, dry brush, such as a clean makeup brush or soft toothbrush.
- Rinse briefly in lukewarm water. For greasy fingerprints, use a drop of mild, unscented dish soap.
- Rinse again to remove any soap residue.
- Dry right away with a soft towel, then let the stone air-dry fully before storing.
For water-sensitive stones
- Dust gently with a soft, dry brush or a microfiber cloth.
- Buff lightly with a dry cloth to remove fingerprints. Skip polishes and oils unless you know they suit that stone.
- Avoid humidity. Don't store these stones in a bathroom or a steamy kitchen.
Safety note: Don't put crystals in drinking water or make "crystal elixirs" by soaking stones, as some minerals can contain substances that aren't safe to ingest. Keep small stones away from children and pets, who may swallow them.
Water-free ways to cleanse crystals
If you enjoy the ritual side of crystal care, these traditions skip water entirely, so they suit even your most delicate stones.
Moonlight
Many people set their crystals on a windowsill overnight during the full moon. It's gentle and works for every stone. Our guide to the moon phases explains when the full moon falls, and our full moon rituals post has ideas for making a little evening of it.
Sound
A singing bowl, a small bell or even a gentle chime held near your stones is a popular, quiet way to mark a fresh start.
Smoke cleansing
Some people pass their crystals briefly through the smoke of an herb bundle. Our step-by-step guide to smoke cleansing your home covers how to light and safely extinguish a bundle.
Lavender & White Sage Bundle for Smoke Cleansing (4 in.)
A small lavender and white sage bundle for smoke cleansing. A gentle, water-free way to refresh your crystals, including the delicate ones.
Shop the bundleFire and smoke safety: Hold a smoldering bundle over a heatproof dish, keep it away from curtains and anything flammable, and never leave it unattended. Open a window for ventilation, and keep smoke away from pets, especially birds, and from anyone with breathing sensitivities. Prefer no smoke? Try our ideas for cleansing without smoke.
Storing your crystals
Harder stones can scratch softer ones, so store crystals so they don't rub together. Small fabric pouches, a lined box or a compartment tray all work well. Keep water-sensitive stones somewhere dry.
Watch the sunlight, too. Some stones, including amethyst, rose quartz, citrine, fluorite and celestite, can fade with long exposure to direct sun, so a shady shelf is kinder than a sunny windowsill for everyday display.
Crystal care FAQ
Can I use salt to cleanse crystals?
Salt water soaks are often suggested online, but salt can be abrasive, leave residue and damage softer or porous stones and metal settings. If you like the tradition, some people set a stone beside a small dish of dry salt rather than in it.
How often should I clean my crystals?
Dust them whenever they look dull. Many people do a ritual cleansing monthly, often at the full or new moon, but there's no fixed rule.
Is it okay to clean crystal jewelry in water?
Be cautious. Even if the stone is water-safe, glue, cord and some metal settings may not be. A dry cloth is the safest option for jewelry.
My selenite got wet. Is it ruined?
A brief splash may leave it slightly dull or rough, but it usually isn't ruined. Pat it dry right away and let it air-dry fully. Avoid getting it wet again.
What if I don't know what my stone is?
Keep it dry until you know. A dry brush and soft cloth are safe for every crystal.
Gentle care, lasting beauty
Caring for crystals is mostly about knowing your stones: quick rinses for hard quartz, dry cloths for the delicate ones, and a little space and shade on the shelf. If you're just starting a collection, our guide to crystals for beginners covers common meanings and how to choose, and our candle rituals post has ideas for including your stones in a quiet intention practice.