Prasiolite
Quartz
Nearly every green quartz sold as green amethyst was purple amethyst until somebody put it in an oven at around 500 degrees. The iron in it changed and the colour came out mint. Natural green quartz does exist, but it is rare and it is not this even pale shade. That is not a scam. It is a treatment the trade does openly, and most shops simply never say it out loud. Now you know, and it is still real quartz. Keep it off the windowsill though, because heat-made colour weakens in strong sun and does not come back. Somebody changed you once and called it helping. You came out lighter, easier, more agreeable, and everyone said you seemed so much better. You were not broken before the oven.
People carry it for calm, self-love and clarity. Tradition attaches it to the element earth, the heart chakra, Venus. It is most often given to Virgo, Taurus, Libra. It measures 7 on the Mohs scale.
Seen · you don't have this one yet
Common·Uncommon·Rare·Arcane
Prasiolite, also sold as green amethyst, is amethyst heated to roughly 500 degrees Celsius. Most of it comes from Montezuma in Brazil. Natural prasiolite exists, but it is very rare.
What it is confused with
Green aventurine, dyed quartz, peridot, green fluorite, chrysoprase
It gets mixed up with fluorite, green aventurine and dyed quartz. Prasiolite is transparent, very pale and slightly grey-green, the colour of a bottle held up to a window rather than of emerald or aventurine. The colour is unusually even for quartz, because it was made in a kiln. Crystallised pieces show the standard quartz prism with horizontal striations, and faceted or tumbled pieces have a glassy shine and a curved shell-like break. Anything strong forest-green and cloudy rather than clear is dyed quartz or aventurine, not prasiolite.
Commonly faked · check before you buy
How to tell
It scratches glass, which fluorite will not. Against green aventurine, hold it to a light. Prasiolite is properly transparent and has none of aventurine's green mica glitter. Dyed quartz gives itself away under a loupe, with colour pooled in the fractures.
Almost all prasiolite on the market is amethyst heated to roughly 500 degrees Celsius, most of it from Montezuma in Brazil. Natural prasiolite does exist, but it is very rare. The pale even mint colour is itself the tell. Heating is standard and openly known in the trade. It does not make your stone a fake, it makes it heated amethyst.
The full mineral facts
Hardness, formula, and how the rock is put together.
Hardness
7 Mohs
Formula
SiO2
Family
quartz
How it forms
Almost all of it started as amethyst, purple quartz coloured by iron, and turned green in an oven at around 500 degrees, while the rare natural kind was heated in the ground instead.
Where it comes from
Brazil (Montezuma, Minas Gerais), Poland (Rudki), Canada (Thunder Bay, natural), Arizona, USA
What it means
The moon is in Sagittarius today, so this is the Sagittarius read.
Being told to be careful still sounds like being told to be small.
Water is fine. Salt is fine. Sun is the one that gets it, because heat-made colour weakens under long light and it does not return.
So the thing that made it green is also the thing that made it fragile. Nobody at the counter tends to mention that part.
Sagittarius, you went through something at high heat and came out an easier colour, and people prefer you like this.
Somebody spent your childhood narrating what would go wrong, in detail, before you had asked. Care showed up shaped like a fence, and you learned to climb every fence you saw.
You have gone anyway, nearly always, and two or three of those cost you people you would have back. Being told to be careful still sounds like being told to be small.
Not every warning is a fence. This one is a windowsill.
That is today's sky, not your chart. Add your birth details and this stone gets read against your own.
Read it for my chart →You know what this one would do for you. You just don't have it.
Prasiolite for every sign
AriesYou have left good things at month four because the noise died down.
Somebody put it in an oven at around 500 degrees. It went in purple amethyst and came out mint green, and then it got a new name on the label.
That is not a scam. It is an open treatment the trade does every day and most shops simply never mention.
Aries, you keep looking for a version of yourself that requires no more work, and there is not one.
You were fast as a kid and somebody made that your whole name.
Quick. Bright. Off before anybody finished the sentence.
So the flat middle of anything now feels like proof you are losing it. You have left good things at month four because the noise died down. Nobody was watching the slow part.
Keep it off the sill. Heat colour goes pale in sun and does not come back.
TaurusYou repeated the story to people you cared about before you found out.
Look at the green. It is pale and completely even, the same mint right the way through, with no darker patches anywhere.
That evenness is the tell. Nearly all of it was purple amethyst until it went in an oven at around 500 degrees.
Taurus, you stopped trusting anything shiny and cheap, and you did not get that way for no reason.
Somebody sold you something once with a very good story attached. You repeated the story to people you cared about before you found out.
You have never said much about it since. You started checking, and taking longer, and letting people call you difficult, and none of them have ever felt as stupid as you did that week.
Ask where it was heated. A decent shop will tell you.
GeminiYou have never once given anybody the version without the joke in it.
There is no such thing as green amethyst. Amethyst is purple by definition, and the moment it turns green in an oven it is a different stone with a different name.
The label is a sales decision. What you are holding is real quartz, and the green arrived from a kiln at around 500 degrees.
Gemini, you turned a hard year into a mild pleasant colour in about two sentences.
Somebody at that table got bored fast, and by nine you knew a good telling kept you in the room while a plain report emptied it.
Now the hardest year you have had is a funny story with a shrug at the end. You have never once given anybody the version without the joke in it.
The plain one is what they would actually stay for.
CancerYou have been quietly bleaching out in a window for two years.
It takes water and salt without trouble. What it cannot take is a bright windowsill, because colour made in an oven weakens under long sun and does not come back.
That is the honest catch. The green is real, and it is also fragile in a way natural colour is not.
Cancer, you keep standing in the same bright room and losing something you cannot get back.
The big things you have handled better than anybody expected. It is the long low ones that wear you down, the same worry at four in the morning, month after month.
Nobody thinks to ask about those, because from outside nothing is happening. You have been quietly bleaching out in a window for two years. People keep telling you that you look well.
Move it out of the light. Then move yourself.
LeoThere is one person you keep being fine around who has never met the purple.
Before the oven it was amethyst. A trace of iron sat in plain quartz while the faint natural radiation of the rock worked on it for longer than you will ever wait for anything, and that made the purple.
Then a person heated it to around 500 degrees and undid all of that in an afternoon.
Leo, you were something else before somebody put you through that, and almost nobody remembers.
Somebody once told you that you were easier to be around when you were lighter about things. You heard it. You went lighter, and everybody said you seemed so much better.
You have been the mint version at parties ever since. There is one person you keep being fine around who has never met the purple.
You were not broken before the oven.
VirgoNow you are correcting a spreadsheet at midnight.
Almost all of it comes out of Montezuma in Brazil, goes into a kiln at around 500 degrees, and comes out green. Natural green quartz exists and is very rare.
The trade knows this and does not hide it. The shop counter is where it stops being said.
Virgo, you were changed to suit a market and you have started to believe the new label.
In that house somebody was unpredictable, and your work was the one thing in the building that could be done correctly. So you did it correctly. Nothing changed.
Now you are correcting a spreadsheet at midnight. The conversation you owed somebody since spring sits exactly where you left it, and you know which one is which.
The spreadsheet was not the thing.
LibraNow a friend asks something small and you check their face before you check yourself.
Hold it up to a lamp. The colour is that soft even mint that looks agreeable in any light, which is exactly what the market wanted from it.
It did not come out of the ground like this. It was purple, and 500 degrees made it into something easier to sell.
Libra, being agreeable in every light is a full time job and nobody is paying you for it.
In that house one person's mood set the weather, so you learned to give the answer that kept the room level instead of the one that was true. It worked. That is why you never stopped.
Now a friend asks something small and you check their face before you check yourself. There is a real preference in there. It has not been asked for in years.
Say the purple version once.
ScorpioSo you turned the volume down and everybody said you seemed happier.
This is not a rare green mineral. It is amethyst that spent time in a kiln at around 500 degrees, sold on under a prettier name.
The stone did not lose anything real. It is still quartz. What it lost was the colour it had made for itself.
Scorpio, you came out of that year a colour nobody would guess you had started as.
They probably said it gently, which is why it went in so deep, and you were young enough to hear it as a fact about you instead of a fact about their limits.
So you turned the volume down and everybody said you seemed happier. You have run the pale version ever since, and the few people who met the dark one never left.
They liked the purple.
SagittariusBeing told to be careful still sounds like being told to be small.
Water is fine. Salt is fine. Sun is the one that gets it, because heat-made colour weakens under long light and it does not return.
So the thing that made it green is also the thing that made it fragile. Nobody at the counter tends to mention that part.
Sagittarius, you went through something at high heat and came out an easier colour, and people prefer you like this.
Somebody spent your childhood narrating what would go wrong, in detail, before you had asked. Care showed up shaped like a fence, and you learned to climb every fence you saw.
You have gone anyway, nearly always, and two or three of those cost you people you would have back. Being told to be careful still sounds like being told to be small.
Not every warning is a fence. This one is a windowsill.
CapricornWhat you cannot do is credit the Tuesdays where you got up and were decent.
The purple took an age. Iron in quartz, worked on slowly by the faint radiation in the rock around it, with nothing to show for a very long stretch of time.
An oven undid all of that in a day, and the market preferred the result.
Capricorn, somebody sped you up once and you have never let yourself slow back down.
You handled the enormous year and you can list exactly what got done. That list is the only place you have ever let yourself look.
What you cannot do is credit the Tuesdays where you got up and were decent. Those are the ones that actually held the whole thing together, and they produced nothing you could show anybody.
The slow part is what made the colour.
AquariusNow you get to a table and put the strange version out first.
The oven is not a secret. Dealers heat Montezuma amethyst to around 500 degrees, the iron in it changes, and the stone comes out mint green.
The only dishonest part is the label. Green amethyst sells and heated amethyst does not, so the shop says the first one.
Aquarius, you have never once lied about yourself, and you have let a wrong label stand for years.
You were the odd one in that house and somebody made a running joke of it. You laughed along, because laughing along was cheaper than arguing.
After a while the joke became how you introduce yourself.
Now you get to a table and put the strange version out first. That way nobody else has to do it for you. It reads as confidence.
Who taught you that joke?
PiscesYou have a whole practice of making yourself smaller after a real reaction.
Put it on a white sheet of paper. The mint is the same everywhere, no zoning, no darker corners, nothing left of where the purple used to be strongest.
That is the giveaway. Around 500 degrees in a kiln, and the colour it made for itself was swapped for one that sells better.
Pisces, you came out of that house a different colour and everybody preferred the new one.
You were the child who cried at things other people walked straight past. Somebody in that house told you to toughen up, and you decided they were right about you.
So now you feel everything at full volume and apologise for it within four seconds. You have a whole practice of making yourself smaller after a real reaction.
The reaction was the accurate part.
Correspondences
What tradition attaches to this stone. Folklore, not chemistry.
Element
earth
Planet
Venus
Chakra
heart
Signs
virgo, taurus, libra
What tradition says
In crystal lore, prasiolite is placed at the heart chakra as a bridge between heart and mind. The attribution is recent and dates from the stone's commercial appearance in the mid-twentieth century.
Care
- Water is fine. Dry it afterwards.
- Keep it out of direct sun. The colour goes and does not come back.
- Keep it out of the sun. The colour was made by heat, and steady ultraviolet light weakens it. Water and salt do it no harm.
Common questions
What does prasiolite mean?
Prasiolite is carried for calm, self-love and clarity. Nearly every green quartz sold as green amethyst was purple amethyst until somebody put it in an oven at around 500 degrees. Tradition links it to the heart chakra.
Is prasiolite real or fake?
Prasiolite, also sold as green amethyst, is amethyst heated to roughly 500 degrees Celsius. Most of it comes from Montezuma in Brazil. It scratches glass, which fluorite will not. Against green aventurine, hold it to a light. Almost all prasiolite on the market is amethyst heated to roughly 500 degrees Celsius, most of it from Montezuma in Brazil.
Can prasiolite go in water?
A short rinse is fine for prasiolite, then dry it. Keep it out of direct sun, because the colour fades and does not come back.
Uncommon · pale mint green, leek green, yellow-green
Where this leads
This stone belongs to
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