Open the drawer marked citrine in almost any crystal shop in Britain and most of what is in it started the year as amethyst.
That is not a scandal on its own, and it is not fraud. It is simply the most useful thing anybody can tell you about this stone, and it is the thing least often said out loud.
What citrine actually is
Quartz. Silicon dioxide, the most ordinary mineral family on the planet, coloured yellow by traces of iron sitting inside the crystal lattice.
Amethyst is the same mineral, coloured purple by iron in a different state, in the same lattice, very often out of the same valley in Rio Grande do Sul in southern Brazil. They are not cousins. They are the same rock in two moods.
Heat one and you get the other. Somewhere between about 450 and 550 °C the purple goes and what comes out is yellow, orange, or the reddish brown the trade calls Madeira, after the wine.
Unheated citrine is genuinely rare — much rarer than amethyst, because the conditions that make yellow quartz are less common than the ones that make purple. So the market did the obvious thing, and has been doing it for well over a century.
How to tell a natural stone from a heated one
- The colour. Natural citrine is usually pale: straw, honey, a smoky lemon. Deep orange-red is the signature of the furnace, not of the ground.
- The base. On clusters and geodes, heated material tends to come out white at the base and orange at the tips, because the heat did not reach evenly through the piece. Natural citrine is more even than that.
- The quantity. A tray of matched, identically coloured, cheap citrine is not a lucky day at the mine.
Heated citrine is still real quartz. It is not glass, it is not dyed, and it will not fall apart. The problem has never been the heat. The problem is being told there was no heat, and paying the price of a rare stone for a common one.
We disclose treatment on every product page. Where a stone has been heated, irradiated, diffused or stabilised, it says so by name.
What people mean when they say crystal healing
Sooner or later anyone who buys a yellow stone runs into the claim that it does something. Attracts money, clears the head, opens something. It is worth knowing where that language comes from, because it is not as old as it sounds.
The chain runs roughly like this. Greek and Roman natural history collected what people said about stones. A medieval bishop, Marbode of Rennes, versified it around 1090 and that poem was copied across Europe for four hundred years. Victorian gift books turned the copies into birthstone lists you could buy jewellery from. Then a publishing boom in the 1980s took the gift books, added the vocabulary of the era, and produced the crystal dictionaries most people are actually quoting today.
Each layer copied the one before it and added a little. That is not the same as an unbroken tradition, and it is certainly not evidence. There is no good clinical evidence that any stone treats or cures anything, and we do not claim otherwise — we have written about that chain at length.
What is real is the practice. People have chosen stones deliberately, given them for particular reasons, and kept them where they mattered, for six thousand years. That is history, and it is interesting on its own terms without anybody having to pretend it is medicine.
What citrine was carried for
Money. Specifically, money that had already been earned.
Be careful with the phrase you will see everywhere: the merchant's stone. That name is modern. It belongs to the twentieth-century crystal literature, not to antiquity, and citrine does not appear under that title in the medieval lapidaries at all.
The reasoning behind it is much older. It is sympathetic magic, the plainest kind there is: a yellow stone the colour of gold, kept where gold was counted, on the principle that like calls to like. The same logic put red stones on wounds and green stones in gardens. It is not a theory about minerals. It is a theory about resemblance.
What makes citrine unusual in a collection like ours is the subject matter. Nearly every stone with a story attached has a story about feeling — grief, love, courage, sleep. This one is about the ledger. It is the only stone here with a head for business, and there is something clarifying about a piece of folklore that is honest about being interested in money.
It is also, on the modern list, a birthstone for November, shared with topaz.
Looking after it
Citrine is 7 on the Mohs scale — the same hardness as the sand that scratches most things softer than it. That makes it one of the easier coloured stones to live with.
- It can be worn without ceremony. At 7, it will take daily wear. This is a stone for an ordinary Tuesday.
- Keep it out of long sunlight. Quartz colour comes from an arrangement that strong ultraviolet light can undo, and heated citrine fades faster than natural. A sunny windowsill is the worst place in the house for it.
- No sudden heat. It was made by heat or it survived heat; either way, thermal shock cracks quartz. Do not put it into hot water straight off a cold hand.
- Warm water and a soft cloth. Nothing else is needed. Take it off before hand cream and hairspray, and put it on last.
Who it goes to
At Asi, citrine is coded to Abundance, and we mean that in the older, narrower sense the till implies: not a wish, but a record. Something kept near the thing you have already worked for.
Some people feel something when they put a stone on. Some do not. If you do not, this one is still the only stone in the collection that was ever supposed to be practical.
All citrine at Asi · The Abundance collection
We describe what stones have traditionally been carried for, and by whom. That is history and folklore, and it is offered as such. We make no medical, therapeutic or health claims about any piece we sell.
Images: Man Weighing Gold, Adriaen Isenbrant, The Metropolitan Museum of Art (open access, CC0). Citrine crystals, Mali, photograph by Parent Géry (public domain). Citrine geode, photograph by Shannon Heinle (CC0), via Wikimedia Commons.