Fire agate is brown chalcedony, a fine-grained quartz, with thin iron-oxide layers that flash orange, green and red as you turn it. It is not banded like true agate. We do not carry it.
Quartz (chalcedony) · Chalcedony
Fire Agate
Ágata de fuego
- Palette
- Brown Orange Green Red Multicolor
- Mined in
- Mexico, United States
- Hardness
- Mohs 6.5–7.0 ?
- See-through
- translucent
- Known since
- Prehistoric
- Named for
- its fire-like iridescent flashes
- Also sold as
- iridescent agate, rainbow agate
- Intention
- Strength Protection
- Looking for
- Courage Grounding Protection
- Water
- Fine with water and mild soap
- Dye or finish
- Fire agate is usually cut from natural rough, but some pieces are coated, and some bright orange stones sold as fire agate are heated carnelian. Ask the seller.
Not in our pieces now
GOETHITE
Fire agate's brown body and rainbow flash come from inclusions of goethite or limonite inside the chalcedony.
NO BANDS
Despite the name, fire agate is not a true agate because it typically has no bands.
6.5 TO 7
Fire agate rates 6.5 to 7 on the Mohs scale and comes only from parts of Mexico and the American Southwest.
What it is
Fire agate is dark brown chalcedony, a fine-grained quartz, with thin layers of iron oxide that flash orange, green and red as you tilt it. It is not banded like true agate; the name is a trade one. It is cut in rounded domes so the layers show, and it is uncommon.
What gives it its color
The brown body and the rainbow flashes come from thin layers of iron oxide (goethite or limonite) trapped in the chalcedony, which split light into colors (the Schiller effect).
Where it comes from
Fire agate comes from central and northern Mexico and from the southwestern United States (New Mexico, Arizona and California).
What's said about it
In crystal lore, fire agate is the stone people keep for courage and steadiness. It's said to be warm, earthy and protective, and it's tied to the sign Aries.
It forms in the cavities of old volcanic rock in Mexico and the American Southwest, and it is uncommon.
People wear it as a ring or bracelet, keeping it from hard knocks and salt water.
How people wear or keep it: On the wrist, as a ring, in a pocket, or on a desk.
In crystal practice
In the crystal tradition, fire agate is paired with the root and sacral and solar plexus chakras, so practitioners rest it there during meditation or lie down with it in place for a few quiet minutes. Day to day, the same tradition suggests keeping it close: on the wrist, as a ring, in a pocket. People reach for it when they want courage, grounding, protection, and many set an intention when they put it on. Most practitioners cleanse a new stone first (running water only if the stone can take it, otherwise smoke or moonlight) and set it aside now and then to rest.
These are beliefs people have held and still hold about the stone, reported as such. Nothing here is a promise or a medical claim. We sell stones as jewelry, not for these effects.
Associations
The chakra and star sign this stone is usually matched with. These are popular traditions, not facts about the stone.
ChakraRoot, Sacral, Solar Plexus
ZodiacAries
ElementFire
Also callediridescent agate, rainbow agate
Care
- Hard enough for a ring, but the thin colored layer can chip, so keep it from hard knocks.
- Rinse briefly in cool water if needed, then dry; avoid hot water, salt water and long soaking.
- Keep it away from perfume and hairspray, and store it apart from harder stones.
- Clean with a soft cloth.
How to tell what you have
- Fire agate is brown chalcedony with thin iron-oxide layers that flash orange, green, and red as you tilt it. The color moves as you move the stone.
- A name with the word fire does not identify every orange or iridescent stone, so check that the iridescence sits inside translucent layers, not as a surface film.
- Very bright orange stones, or a creamy glazed look at the drill hole, are reasons to ask more questions.
What sets the price
Price follows how bright and varied the rainbow flashes of orange, red and green are across the surface; it is a rare stone from a few mines, and brown stones with little flash cost much less.
Rules and sourcing
Some fire agate beads are coated, and some bright orange stones sold under the name are heated carnelian. The FTC jewelry guides call for disclosing a coating and not using the name for a different stone.
Questions people ask at our table
Is fire agate a true agate?
Not quite. It is chalcedony, the same family as agate, but it usually has no banding. The rainbow flash comes from thin iron-oxide layers inside the stone.
Is fire agate the same as fire opal?
No. Fire opal is a different mineral, soft and often orange or red. Fire agate is a much harder brown quartz with a rainbow sheen.
Where does fire agate come from?
Only from central and northern Mexico and the southwestern United States, where it formed in volcanic rock long ago.
How do I care for fire agate?
Wipe it with a soft cloth and keep it from knocks, hot water and salt. The thin colored layer is the part to protect.
Do you carry fire agate?
No, we do not carry it. Golden tiger eye and brown aventurine are the stones in our pieces with a similar warm brown glow.
Not in our pieces right now
Stones we do carry that are close to it are listed under related stones.
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