Crystal Meanings Chart: 40 Stones, What They're For, and Which Ones Water Ruins

How to read this chart

Each row carries two kinds of information, and it is worth keeping them apart in your head.

The meaning column is tradition. These associations come from lapidary texts, nineteenth- and twentieth-century occult writing, and current practice. They are real in the sense that a large number of people work with them and agree on them. They are not claims about what the mineral does to your body or your circumstances, and we are not making any such claim.

The hardness, water and light columns are mineralogy. Those are testable. Selenite dissolves in water because it is gypsum, a calcium sulfate that is slightly water-soluble. That is not a belief; it is why your wand goes cloudy and then grainy.

The last column is trade reality. A large share of what is sold under these names is treated, dyed, reconstituted or simply something else. That is not always dishonest — dyed black onyx has been the normal product for centuries — but you should know which stone you are holding.

The crystal meanings chart: 40 stones

What Mohs hardness actually tells you — and what it does not

This is the single most-repeated error in crystal care advice, and the chart above is built to expose it.

The Mohs scale, published by Friedrich Mohs in 1812, ranks minerals by one thing only: which of them scratches which. It is an ordinal list, not a measurement. Diamond at 10 is not twice as hard as apatite at 5; the real gap between 9 and 10 is larger than the whole gap from 1 to 9.

The widely repeated rule — anything under Mohs 5 must not go in water — is a rough proxy that fails in both directions, and you can see it failing in the table:

• Pyrite sits at 6–6.5 and must be kept dry. It is harder than lapis lazuli and harder than turquoise, but it is an iron sulfide, and moisture degrades it. Damp air alone is enough over time.
• Obsidian sits at 5–5.5 and is perfectly fine in water. It is volcanic glass, chemically inert. Its problem is that it chips into genuinely sharp edges, which hardness does not tell you either.
• Malachite is ruined by water at 3.5–4, but not because it is soft. It is a copper carbonate. Water attacks the chemistry, and powdered malachite is a dust you should not breathe or drink, which is why gem water made with it is a bad idea regardless of hardness.
• Selenite at 2 genuinely dissolves — and here softness and solubility happen to point the same way, which is why the rule survives.

What hardness does tell you is whether the stone will survive a pocket, a keyring or a ring on your working hand. Below about 5 it will pick up scratches from ordinary dust, because airborne quartz sits at 7.

A pleasing detail buried in the chart: four of the ten reference minerals of the Mohs scale are on it. Gypsum is 2, which is selenite. Calcite is 3. Fluorite is 4. Apatite is 5. Quartz is 7, which is amethyst, rose quartz, citrine, carnelian, agate and tiger's eye all at once. You can calibrate your own sense of hardness with stones you probably already own.

Which crystals cannot go in water

Pulled out of the chart, grouped by the reason, because the reason decides whether a quick rinse is survivable or not.

Reason	Stones	What happens
Soluble	Selenite, halite, calcite	The stone itself goes into the water. Selenite clouds, then turns grainy, then loses its shape. Halite simply disappears.
Chemically altered	Angelite, malachite, azurite, rhodochrosite, aragonite	The water reacts with the mineral. Angelite is anhydrite and slowly reverts toward gypsum. Malachite and azurite are copper minerals and degrade at the surface.
Corrodes	Pyrite, hematite	Iron content rusts or spots. Pyrite is the clearest case: damp air alone is enough.
Porous or stabilised	Turquoise, lapis lazuli, opal, apatite	Water carries dirt and oils into the stone, or lifts the stabilising resin. Opal can craze — a network of fine cracks that does not come back.
Cleaves or flakes	Fluorite, celestite	Not a chemical problem. Water works into the cleavage planes, and the piece splits along them later. Labradorite and kunzite cleave too, but survive a quick rinse.

That is sixteen of the forty ruled out entirely. Everything else on the chart tolerates a brief rinse in cool water, dried immediately. Nothing on the chart benefits from soaking. If you want a method that works for all forty without exceptions, use dry smoke, sound, or a night on a hard surface — how to cleanse crystals goes through the alternatives in order. We also wrote up the water question on its own in crystals that cannot go in water.

One separate warning, because it comes up constantly: do not make drinking water with malachite, azurite, pyrite, halite, or any stone you cannot identify. The direct-contact gem water method is the risky one. Gem water, done safely covers the indirect method that avoids the problem entirely.

Which crystals fade in sunlight

Sunlight damage is slower and quieter than water damage, which is why people miss it until a stone they liked has gone beige.

Fades noticeably: amethyst, rose quartz, citrine, fluorite, celestite, rhodochrosite, amazonite, turquoise, calcite, and above all kunzite, which is notorious for it — collectors keep kunzite in the dark as a matter of course.

Changes rather than fades: azurite slowly alters toward green malachite; amber darkens with age and light rather than lightening.

Stable: clear quartz, obsidian, black tourmaline, garnet, tiger's eye, jasper, agate, onyx, hematite, moonstone, labradorite, selenite, moldavite, peridot.

This has a direct consequence for the popular advice to charge crystals on a sunny windowsill: for roughly a quarter of the stones on this chart, that instruction is slowly destroying them. Moonlight has no such problem, which is one practical reason it is the more common recommendation. We went through this in crystals that fade in sunlight and how to charge crystals.

Which of these are usually not what the label says

This is the part no chart includes, and it is the part that will save you money. None of the following are rare edge cases; several describe the majority of what is on the shelf.

Sold as	Usually is	How to tell
Citrine	Heat-treated amethyst	Deep orange with a white or smoky base, and a cluster shape that matches amethyst geodes. Natural citrine is pale lemon and far less common.
Selenite	Satin spar	Both are gypsum, so it is not a fake so much as a misnaming. Satin spar is the fibrous, silky wand; true selenite is the glassy transparent plate.
Turquoise	Stabilised turquoise, reconstituted powder, or dyed howlite	Dyed howlite shows dye concentrated in the grey veins rather than the body; a hot needle on an inconspicuous spot smells of plastic on resin-bound pieces.
Lapis lazuli	Dyed jasper or dyed howlite	Real lapis carries uneven pyrite flecks and white calcite. Acetone on a cotton bud lifts dye from imitations.
Moonstone	Opalite, a manufactured glass	Opalite glows orange against a light and blue against a dark background, evenly. Moonstone's sheen moves as you tilt it.
Sunstone	Goldstone, a man-made glass with copper	Goldstone's sparkle is uniform, dense and repeating — it looks manufactured because it is.
Moldavite	Green bottle glass	Real moldavite has a sculpted, etched surface and internal bubbles that are irregular. Round, even bubbles mean glass.
Magnetic hematite	Hematine, a sintered ferrite	Natural hematite is not noticeably magnetic. If it sticks firmly to a fridge, it is manufactured.
Amber	Plastic, or young copal	Amber floats in heavily salted water; most plastics sink. Copal softens under a drop of acetone, amber does not.
Cherry quartz, opalite, goldstone	Glass, by definition	These are trade names for manufactured material. Not a scandal — but not minerals.

Two things worth saying alongside that list. First, treatment is not the same as fraud: heated carnelian and dyed onyx are the historical norm and nobody in the trade pretends otherwise. Second, a treated stone is not useless for practice — plenty of practitioners work happily with heated citrine. What matters is that you know, so you can care for it correctly and pay the right price. Our longer piece on this is real versus treated crystals.

Crystals by colour

Colour is how most people actually navigate a shop, so here is the chart resorted that way. The association in each row is the common thread across the stones in it, not a property of the colour itself.

Colour is also the spine of the chakra system, which assigns one stone colour to each of seven points on the body. If that is the map you want, which crystal goes with which chakra lays it out, and the seven chakras explained covers where the system comes from.

Crystals by zodiac sign

Two different systems get mixed up under this heading, and they disagree with each other.

Modern birthstones are a commercial list. The American National Association of Jewelers standardised it in 1912, and it has been revised several times since — tanzanite was added in 2002, spinel in 2016. It is a trade calendar, and a recent one. We set it out in full in birthstones by month.

Zodiac stone lists are older, more varied, and mutually contradictory — different lapidaries assign different stones to the same sign, and the lists shift by century and by author. There is no authoritative version.

Sign	Commonly given stones	Sign	Commonly given stones
Aries	Carnelian, garnet, red jasper	Libra	Lapis lazuli, rose quartz, opal
Taurus	Green aventurine, rose quartz, selenite	Scorpio	Obsidian, malachite, garnet
Gemini	Agate, citrine, apatite	Sagittarius	Turquoise, sodalite, labradorite
Cancer	Moonstone, selenite, rhodochrosite	Capricorn	Onyx, smoky quartz, jet
Leo	Tiger's eye, sunstone, citrine	Aquarius	Amethyst, amazonite, moldavite
Virgo	Amazonite, moss agate, peridot	Pisces	Amethyst, fluorite, celestite

Treat this as one traditional list among several rather than the list. If a stone you are drawn to sits under a different sign, that is not a mistake on your part; it is a disagreement between sources, and the sources have always disagreed.

What crystals should not be kept together?

There are two versions of this question. One is physical and true; one is traditional and contested.

The physical version: anything at Mohs 7 stored loose against anything below 5 will scratch it. Quartz points in a pouch with selenite, fluorite or calcite will mark them within weeks. Pyrite and hematite stored against anything in a humid room can transfer rust marks. This is not energetic, it is abrasion, and it is entirely avoidable by wrapping the soft pieces.

The traditional version — that certain stones' energies conflict — is widely repeated and not consistently agreed on between sources. We treat it as practice rather than fact, and said so at length in crystals that should not be kept together.

How many crystals does a beginner actually need?

Three, and there is a practical argument for that number rather than a mystical one.

A first set that covers most of what people come to crystals for is: one clear quartz (general purpose, hard, water-safe, sun-stable, impossible to ruin), one black stone (tourmaline or obsidian — the grounding and boundary end of the chart), and one that you simply liked on sight. That third one matters more than it sounds. The stone you chose because of how it looked is the one you will actually pick up.

What you do not need is forty. A collection assembled fast tends to sit in a bowl untouched, and a bowl of unhandled stones is how the soft ones get scratched by the hard ones in the first place.

How to cleanse and charge the stones on this chart

Given the water and light columns above, only three methods work on all forty without a caveat.

Method	Safe for all 40?	Notes
Dry smoke	Yes	Incense, resin on charcoal, a herb bundle. Nothing touches the stone.
Sound	Yes	A bell or bowl. No contact, no residue, works in a flat at night.
A night on a hard surface	Yes	Stone, wood, or a satin spar plate. The traditional and the practical answer overlap here.
Moonlight	Yes	No fading risk, unlike sun. Indoors on a sill is fine; outdoors adds dew.
Sunlight	No	Ruins roughly a quarter of the chart over time. Kunzite, amethyst, fluorite and celestite worst.
Running water	No	Fails for sixteen of the forty outright. See the table above.
Salt burial	No	Scratches soft stones and pits porous ones. Salt is Mohs 2.5 but the crystals are angular.

If you want one method to standardise on, dry smoke covers every stone here and needs no thinking. If you want the longer argument for each, it is in how to cleanse crystals.

Where the meanings in this chart come from

Worth being precise about, because a chart that does not say is asking to be trusted on nothing.

The associations in the fourth column draw on three overlapping streams. Medieval and early modern lapidaries — texts such as Marbode of Rennes's eleventh-century Liber lapidum and the works attributed to Albertus Magnus — are where a good deal of the European material starts, though they attribute effects we would not repeat. Late nineteenth and twentieth-century occult and Theosophical writing is where much of the current vocabulary was set, and where the chakra colour correspondences entered Western crystal practice. Contemporary practice, from the 1980s onward, is where most of the specific stone-to-feeling pairings people now recite were fixed, largely through a handful of widely-copied reference books.

The honest summary: these associations are a living tradition of roughly the last forty years, resting on much older material that said quite different things. That does not make them worthless. It does mean that when two charts disagree, neither is wrong in the way a hardness figure can be wrong.

Find your starting stone

Voices from practice

No invented names and no invented testimonials. These are the patterns we hear repeatedly from people who keep stones, written as composites.

• The ruined selenite. By a wide margin the most common story. A wand rinsed once under a tap, and the silky surface gone cloudy within a day. Almost nobody is told before it happens.
• The beige amethyst. Charged on a south-facing sill for a summer, following advice found online, and noticeably paler by autumn. The advice was not malicious; it simply did not distinguish between stones.
• The citrine discovery. People are usually more annoyed at not being told than at owning heated amethyst. Most keep using it.
• The three that get used. Collections grow fast, then settle. Ask someone with sixty stones which they actually handle and the answer is nearly always two or three — and usually not the expensive ones.

What we don't promise

• That any stone on this chart treats, cures, prevents or relieves any physical or mental health condition. It does not, and nothing here should replace medical or psychological care.
• That the traditional associations in the fourth column produce an effect. They are a documented tradition, which is a different claim, and we have said where that tradition comes from and how recent most of it is.
• That a stone will change your circumstances, your money, your relationships or your luck.
• That our identification of a stone in your hand is possible from a description. Several pairs on this chart — celestite and angelite, sodalite and lapis, selenite and satin spar — are routinely confused by sellers, and a photograph is not a determination.
• That the hardness figures are exact. Mohs is an ordinal ranking, not a measurement, and published ranges for the same mineral differ between sources by up to half a point.

Practically: how to work with this chart

Use the last three columns first and the meaning column second. That is the reverse of how most people read a crystal chart and it is the order that keeps stones intact.

Before you buy: check the Mohs figure against where the stone will live. Under 5 and it should not go in a pocket with keys. Before you clean it: check the water column, and if in doubt use smoke, which is safe for all forty. Before you put it on a windowsill: check the sunlight column, because that is the slow mistake nobody notices until it has happened.

If you are assembling a first handful, our tumbled pocket stones are the cheapest way to hold several of these before committing, and the wider crystals and stones range covers points, clusters and carvings once you know which stone you keep reaching for.

And when you want to go deeper on one stone rather than wider across forty, we have written single pieces on several of them: amethyst, rose quartz, black tourmaline and what the different cuts and shapes are for.

For the stone with the widest gap between what is claimed and what can be shown, see how to use selenite.

Frequently asked questions

What is the most useful crystal meanings chart to start from?

One that gives you care information alongside the association, because the association is a tradition and the care is a fact. The chart above lists forty stones with their Mohs hardness, whether they tolerate water, whether they fade in sunlight, and what they are most often substituted with. Sorted hardest to softest, it also shows you at a glance which of your stones are the fragile ones.

Which crystals cannot go in water?

On this chart, sixteen of the forty. They fail for four different reasons: selenite, halite and calcite are soluble; angelite, malachite, azurite, rhodochrosite and aragonite are chemically altered by water; pyrite and hematite corrode; turquoise, lapis lazuli, opal and apatite are porous or resin-stabilised; and fluorite and celestite split along cleavage planes. Hardness alone does not predict this, which is why the popular "under Mohs 5" rule gets it wrong in both directions.

Which crystals fade in sunlight?

Amethyst, rose quartz, citrine, fluorite, celestite, rhodochrosite, amazonite, turquoise and calcite all fade noticeably, and kunzite is the worst of the group — collectors keep it in the dark. Azurite alters toward green rather than fading. Clear quartz, obsidian, black tourmaline, garnet, tiger's eye, jasper, agate, onyx, hematite, moonstone, labradorite, selenite, moldavite and peridot are stable. This makes the common advice to charge crystals on a sunny windowsill actively harmful for about a quarter of these stones.

Is most citrine actually heated amethyst?

Most of what is sold as citrine, yes. Natural citrine is a pale lemon yellow and relatively uncommon. The deep orange material with a whitish or smoky base, especially in cluster or geode form, is generally amethyst that has been heat-treated. This is standard practice rather than fraud, and plenty of practitioners work with it happily — but it affects what you should pay and it explains why the colour looks nothing like the pale natural stone.

What does Mohs hardness actually measure?

Scratch resistance, and only that: which mineral marks which. Friedrich Mohs published the scale in 1812 as an ordinal ranking, not a measurement, so the gaps between numbers are uneven — the distance from 9 to 10 is larger than from 1 to 9. It tells you whether a stone survives a pocket or a ring. It tells you nothing about water tolerance, light stability or toxicity, which is why this chart lists those separately.

How many crystals does a beginner need?

Three is a sensible starting number: one clear quartz, because it is hard, water-safe, sun-stable and effectively impossible to ruin; one black stone such as tourmaline or obsidian for the grounding end of the range; and one you simply liked the look of, because that is the one you will actually pick up. A large collection bought quickly tends to sit unhandled, with the soft stones getting scratched by the hard ones in the bowl.

Which crystals should not be stored together?

Physically, anything at Mohs 7 stored loose against anything below 5. Quartz points in a pouch with selenite, fluorite or calcite will mark them within weeks, and pyrite or hematite can transfer rust marks in a humid room. Wrapping the soft pieces separately solves it. The traditional claim that certain stones' energies conflict is widely repeated but not consistently agreed between sources, and we treat it as practice rather than fact.

How can I tell if a crystal is fake?

Start with the specific substitution rather than a general test. Opalite sold as moonstone glows orange against a light and blue against a dark background, evenly. Goldstone sold as sunstone has a uniform repeating sparkle. Moldavite fakes are bottle glass with round, even bubbles. Magnetic "hematite" is a manufactured ferrite — real hematite is barely magnetic. Amber floats in heavily salted water where most plastics sink. Dyed howlite sold as turquoise or lapis shows dye pooled in the veins, and acetone on a cotton bud lifts it.

Sources & further reading

• Cornelis Klein and Anthony R. Philpotts, Earth Materials: Introduction to Mineralogy and Petrology, 3rd edition, Cambridge University Press, 2023 — for mineral composition, solubility and cleavage.
• Walter Schumann, Gemstones of the World, 6th revised edition, Sterling, 2020 — hardness ranges, treatments and the standard trade names.
• Mindat.org, the Hudson Institute of Mineralogy database — species data used to check the hardness figures and the angelite/celestite distinction.
• Gemological Institute of America, gem encyclopedia and treatment disclosure guidance, gia.edu — on heat treatment, stabilisation and dyeing.
• Jewelers of America, birthstone list history and the 1912, 2002 and 2016 revisions — on how recent the modern birthstone calendar is.
• Marbode of Rennes, Liber lapidum, eleventh century, in John M. Riddle's edition — a primary source for the European lapidary tradition.
• Christopher Partridge (ed.), The Occult World, Routledge, 2015 — on the late nineteenth and twentieth-century transmission of crystal and chakra correspondences into Western practice.
• U.S. National Institute for Occupational Safety and Health, copper compound exposure guidance, cdc.gov/niosh — background for the malachite and azurite dust caution.