Buying your first crystal can be a bit of a minefield.
You might believe you’re admiring a gorgeous piece of amethyst, but for all you know, that rock may have rolled straight off a factory conveyor belt.
Because, unfortunately, fake, dyed and man-made stones are everywhere. That doesn’t mean you need to become a geologist overnight to tell the difference, though.
With a little know-how – and all your senses intact – it’s surprisingly easy to spot a few tell-tale signs for crystals and counterfeit. So before you welcome a new crystal into your collection, let’s give it a proper sense check.
Sight: If it looks perfect, that’s your first red flag
Nature is many things. Impressive, beautiful, terrifying and, occasionally, a little wonky. Perfect is not one of them.
One of the biggest giveaways that a crystal may not be the real deal is when it looks a little too flawless. Perfect colour. Perfect symmetry. No markings or variations anywhere in sight. Which, obviously, is slightly suspicious for something that supposedly spent millions of years forming underground.
Real crystals often contain little quirks that make them unique, like:
- Tiny fractures
- Colour variation
- Internal inclusions
- Cloudy patches
- Natural growth patterns
Colour can also tell you a lot.
If a crystal is glowing with an intensely bright, almost fluorescent colour, it’s a bit suss. Some stones are naturally that vivid, so don’t write them off straight away. Dyed stones, though, often have an unnaturally even colour, and you can usually spot the dye pooling in tiny fractures or cracks running through the stone.
And then there are the bubbles.
Now, before everyone starts aggressively inspecting their crystals under a lamp, a bubble doesn’t automatically mean you’ve been duped. Some rare crystals can contain natural water inclusions, while volcanic and meteoric stones like obsidian and Libyan Desert Glass can naturally have bubbles because of the way they formed. It’s all about the context.
But, if you’re seeing lots of perfectly round, static bubbles suspended throughout a crystal, you’ve likely got some glass on your hands. The good news is that they can still make great paperweights.
Touch: You want a cool customer
Pick up a crystal and hold it for a moment. How does it feel?
Genuine crystals are often noticeably cool to the touch. Better yet, they tend to stay cool for longer. Plastic, resin and other synthetic materials usually warm up pretty quickly once they’re sitting in your palm.
Weight is another clue.
A real crystal generally feels surprisingly substantial for its size. Not ridiculously heavy, but solid. A fake crystal can feel oddly lightweight, almost as though something’s missing. Which is because it is. The big exception is amber, since it’s a fossilised tree resin rather than a mineral.
Texture can also reveal quite a bit.
Natural crystals aren’t always perfectly smooth. Even polished pieces can have tiny surface variations or small imperfections. Like all things, if a crystal feels suspiciously slick, it might be worth further investigation.
Sound: Give it a little listen
This isn’t the most reliable test on the list, but it is an interesting one. So I’m giving it a shoutout, too.
If you gently tap certain crystals against another stone, they can produce a clearer, more resonant sound than glass or plastic imitations.
Notice the word ‘gently’ there. I’m not encouraging anyone to start clacking their crystal collection together like a pair of castanets.
This is obviously not a necessary test, but it could be worthwhile. At best, it offers an extra clue. At worst, you’ve chipped your favourite piece of rose quartz and ruined your afternoon.
Proceed accordingly.
Smell: Your crystal shouldn’t smell like glue
Crystals aren’t exactly famous for their fragrance. Most genuine crystals don’t smell like much at all.
That’s why a strong chemical smell should raise your eyebrow.
If a crystal smells distinctly of plastic, resin, glue or paint, there’s a reasonable chance you’ve encountered a man-made material or a heavily treated stone.
This can be particularly noticeable with dyed crystals. Some treatments leave behind an unmistakable artificial smell that tends to linger.
So, if your crystal reminds you of Bunnings, that’s information worth having.
Taste: Absolutely not
Technically speaking, some minerals can be identified by taste. Technically speaking, people have also used arsenic in cosmetics.
So just don’t put stuff in your mouth.
Apart from the obvious hygiene concerns, some minerals contain substances you really don’t want to consume. Others have coatings or treatments that definitely weren’t designed with snacking in mind.
So while ‘taste’ may be one of the traditional senses, we’re going to agree as a group that we are going to bypass it when it comes to crystal testing.
Thank you for your cooperation.
Your sixth sense: Trust your instincts
Sometimes, the biggest red flags have nothing to do with the crystal itself.
They’re attached to the price tag. Or the product descriptions. Or the seller who becomes mysteriously vague when you ask where something came from.
So here are a few questions worth asking yourself:
- Is the price dramatically lower than similar pieces?
- Can the seller tell you what the crystal actually is?
- Is the name weirdly dramatic?
‘Ultra Galactic Celestial Dream Quartz’ might sound exciting, but it is very likely a man-made stone trying to fool you.
That said, opalite, goldstone and aura-treated crystals are all examples of materials that are either enhanced or created through human intervention. Plenty of people love them, collect them, sell them and work with them. Including me.
If you’re still not convinced, there are a few more tests you can try. A gentle wipe with rubbing alcohol can reveal dye transfer on treated stones, and checking a crystal against the Mohs hardness scale can help confirm whether its hardness matches the stone it’s being sold as.
At the end of the day, authenticity is about transparency. You deserve to know what you’re buying, whether it’s a rare natural crystal, a treated stone or a man-made material.
Ready to start your collection with confidence? Explore our full range of crystals and discover pieces that are exactly what they say they are.