The glow of tonic water under a blacklight is called fluorescence because of this stone. In 1852 the physicist George Stokes was studying light from quinine, uranium glass and fluorspar, and he borrowed fluorspar's name for the effect, the way opalescence is named for opal. Fluorite also gave its name to the element fluorine.
Often called the genius stone, fluorite stands for focus and order, a favorite of students and anyone with too many thoughts at once. One cheap ultraviolet flashlight, the kind sold for pet stains, will show you whether your own piece glows.
Fluorite quick facts
- Chakra: Third eye, crown, throat, heart
- Zodiac: Capricorn, Pisces
- Element: Air, water
- Color: Purple, green, blue, yellow, clear, often banded together as rainbow fluorite
- Hardness: 4 on the Mohs scale, soft enough to scratch with a steel knife
- Commonly from: China, Mexico, Mongolia, South Africa, England
- Pairs with: amethyst, clear quartz, labradorite
A tidy mind in stone
Fluorite crystals often grow as cubes and break into clean, regular shapes, and that natural order is at the heart of what it stands for.
Focus. Fluorite is the classic study stone. People keep a piece beside a laptop or textbook when they need to concentrate on one thing at a time.
Order. Its neat geometry is linked to sorting out chaos: messy thoughts, a crowded schedule, a decision with too many sides.
Calm. The soft purples and greens of rainbow fluorite make it a gentle desk companion on a hectic day.
Its name comes from the Latin fluere, to flow. For centuries miners added fluorite to their furnaces as a flux, to help metal ores melt and flow, and in England's Derbyshire hills a banded purple-and-yellow variety called Blue John has been carved into vases and bowls since the 1700s.
Four chakras, two signs
Fluorite's many colors give it more chakras than most stones, and the table below shows which color goes where. A rainbow piece touches several at once. Fluorite is linked to Capricorn and Pisces, and to the elements air and water.
What each color means
| Color | Chakra | What it's chosen for |
|---|---|---|
| Purple | Third eye, crown | Intuition and a quiet, focused mind |
| Green | Heart | Growth, fresh starts and a calmer heart |
| Blue | Throat | Clear, honest communication |
| Yellow | Solar plexus | Optimism, creativity and new ideas |
| Rainbow | Several at once | Focus and balance across the board |
A desk stone, a study stone
- Beside homework, a desk or a laptop
- Before an exam, an interview or a big project
- In a busy office, as a calm point to look at
- As a reminder to tidy one thing, then the next
- In a collection, since no two rainbow fluorites match
Palm stones, rings and carvings
Hold it. A fluorite palm and worry stone shows its bands best in the hand, and many people keep one on the desk to turn over while they think. We carry rainbow and green fluorite palm stones.
Wear it. The adjustable fluorite crystal ring sets a natural fluorite in a one-size band, a small reminder on your hand to stay with the task in front of you.
Display it. The rainbow fluorite skull tree of life carving pairs a carved skull, a symbol of transformation and memory, with the tree of life, for growth. The yellow fluorite eagle carving pairs honey-yellow fluorite with the eagle, a symbol of clear sight and perspective.
See it glow. In a dark room, shine an ultraviolet flashlight on your fluorite. A 365 nm light works best, since cheaper 395 nm lights give off purple of their own. Many pieces answer with a blue or violet glow, the very effect named after this stone. Not every piece fluoresces, and that's part of the fun of checking.
Fluorite with amethyst, clear quartz and labradorite
Amethyst shares fluorite's purple and its place at the third eye, and together they make a calm study pair. Read about it in our amethyst guide. Clear quartz, the master stone, is said to amplify fluorite's focus, as our clear quartz guide explains. Labradorite adds intuition to fluorite's logic, and our labradorite guide has more.
For more stones of insight, browse our third eye chakra crystals.
Treating a soft stone kindly
Fluorite is a 4 on the Mohs scale, softer than glass, and it splits easily along four directions. A drop on a hard floor can chip a corner or break a piece cleanly in two, and a ring stone can scuff if it's knocked. Keep it in its own pouch and take a fluorite ring off for chores.
Some fluorite colors, especially purples and greens, can slowly fade in strong sunlight, so a shaded shelf is best. Water won't dissolve it: a quick rinse is fine, but don't soak it or scrub it, and it isn't a stone for drinking-water elixirs. Moonlight or sage smoke are gentle ways to cleanse it. Quick care facts for every stone we carry are in our crystal care chart. Every crystal in our shop is smudged with sage and charged in the moonlight before it ships.
Fluorite FAQ
Can fluorite be in the sun?
Not for long. Some colors fade in strong sunlight, so keep it on a shaded shelf.
Can fluorite go in water?
Briefly. A quick rinse won't hurt it, but skip soaking and scrubbing, since it's soft.
Is fluorite toxic?
It's safe to handle and wear. It contains fluorine, so it shouldn't be ground up or soaked in water you plan to drink.
Is fluorite a crystal?
Yes. It's a natural mineral, calcium fluoride, that grows as cubes and octahedrons.
How can you tell if fluorite is real?
Real fluorite feels cool and shows straight color bands and flat cleavage planes. Glass copies warm quickly in the hand and often hold round bubbles.
Is fluorite worth anything?
Everyday tumbled fluorite is affordable. Large, clear, well-formed crystals and rare colors are prized by collectors.
Why one stone shows every color
Pure fluorite, calcium fluoride, is colorless. Its famous colors come from tiny amounts of other elements and from small flaws in the crystal, many of them made by natural radiation over long ages. As fluorite grows in mineral veins, the fluid feeding it changes from time to time, so the crystal lays down one color, then another, in bands. That's what rainbow fluorite is: a record of a changing vein, written in purple, green and clear.
The glow under ultraviolet light has a similar cause. Some of those trace elements, europium among them, take in invisible ultraviolet light and give it back as visible blue. Crystals of the same material, now mostly grown in labs, are prized for high-end camera and telescope lenses because they bend light with very little color fringing.
Each piece we sell is one of a kind, and the one pictured is the one you'll receive.