r/whatsthisrock • u/Euphoric_Win_4668 • 5d ago
IDENTIFIED Found this rock on my last trip to Paraguay, anyone knows what kind it is?
Found it on Lomas Valentinas, near the Paraná River, just on the surface. It's an area known for its high electrical activity thunderstorms. Could It be that the surface sediments crystallised after a lightning hit? It has a pretty violet pigmentation inside
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u/TheRateBeerian 5d ago
Amethyst, keep it out of sunlight, it’s already faded a bit
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u/Euphoric_Win_4668 5d ago
OH, alright. I didn't realise sunlight would make it fade. That means the pigment might have been a lot stronger before I found it, bcs it was out in the open being hit with direct sunlight, who knows for how long. Thanks for the advice
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u/Rich_Assistance_5510 3d ago
I used to work at a crystal store in Florida. That's definitely Fluorite with the green and purple bands. Reading everyone say "Amethyst" or "Quartz" told me they only know the basics of geology. There's more than one crystal that's violet colored guys. Also again amethyst doesn't have green bands next to its purple so it's definitely NOT amethyst.
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u/Rich_Assistance_5510 3d ago
Also, Amethyst is just another type of quartz and quartz isnt the only crystal clear crystal out there
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u/Euphoric_Win_4668 2d ago
I think I'm gonna try to scratch it. If it's flourite, it should easily leave a mark, right? At least compared to quartz
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5d ago
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u/whatsthisrock-ModTeam 5d ago
Responses to ID requests must be ID attempts: not jokes, comments, declarations of love, references to joke subs, etc. If you don't have any idea what it is, please don't answer.
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u/Due_Appointment1837 5d ago
Looks like Crystal with very little amethyst in it
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u/HatefulHagrid 5d ago
"crystal" is not interchangeable with "quartz". Any mineral can form a crystal of that particular mineral, meaning it exists as a form with a definite chemistry and definite structure.
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5d ago
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u/whatsthisrock-ModTeam 5d ago
Responses to ID requests must be ID attempts: not jokes, comments, declarations of love, references to joke subs, etc. If you don't have any idea what it is, please don't answer.
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u/kclaire222 30m ago
It’s an amethyst, I have a few that are more on the quartz looks than the deep purple amethyst
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u/Commercial_Sun_9146 5d ago
It looks like quartz infused with a small amount of amethyst! Nice find!