this post was submitted on 19 Sep 2026
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[–] SpongyAneurysm@feddit.org 1 points 50 minutes ago

I have a friend who had ONE geology class in university, majored in physical geography. But he is known as the rocks guy, since nobody knows what his major actually is.

I was on an island holiday recently, where the most prominent rock formation is simply called "the rock". I sent him one of these perspective trick photos where it locks like I'm licking 'the rock' with the message: "me, a real geologist".
He was mildly amused.

[–] stephen@lazysoci.al 157 points 1 day ago (5 children)

On a more “licking” note than an “LSD” note - in geology 101, had a group exam where we had to identify mineral samples. Group spent 50% of the total time waffling on deciding how to identify the last two samples - salt and quartz. We knew one was one, and the other the other. Finally got tired of arguments about clarity or cleavage or whatever other nonsense we had in that elective. I had places to be. Licked one. Then the other. Second one was salt. Probably wasn’t the first college student to lick those samples either.

[–] buttmasterflex@piefed.social 137 points 1 day ago* (last edited 1 day ago) (6 children)

Licensed Professional Geologist here, and licking is a totally valid method for distinguishing between mineral hand samples that have very similar properties otherwise. For instance, halite (NaCl, aka table salt) and sylvite (KCl) are isomorphous, which means they have the exact same crystal structure and are very difficult to distinguish using traditional methods. Halite tastes like salt, but sylvite makes your tongue tingle when licked. Our mineralogy professor told is it's the only reliable way to differentiate the two without actual chemistry analysis.

[–] BitUnWise@programming.dev 33 points 1 day ago (2 children)

Licking is a chemical analysis, albeit a crude one

[–] Schmoo@slrpnk.net 10 points 1 day ago

I wouldn't call a chemical touch sensor optimized by eons of evolution to differentiate molecules from one another crude.

[–] Krudler@lemmy.world 13 points 1 day ago

In some ways it's no more crude than looking at it, right?

[–] spacehulk@lemmy.zip 1 points 22 hours ago (1 children)

Couldn't you just scratch one with your keys?

[–] buttmasterflex@piefed.social 4 points 21 hours ago

Between halite and quartz, absolutely. Halite and sylvite have the Moh's hardness of 2, so your keys would scratch both.

[–] ryannathans@aussie.zone 8 points 1 day ago* (last edited 1 day ago) (3 children)

I like KCl, it makes my food taste better when I replace 1/3 to 1/2 of the NaCl in a recipe with KCl (in addition to adding the remaining amount of NaCl)

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Pick rocks and lick rocks. The way of the hound.

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[–] heartSagan5@lemmy.zip 31 points 1 day ago (1 children)

Nope, geologists are commonly associated with licking rocks, and basically for the reason you’ve shared.

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[–] goldteeth@lemmy.dbzer0.com 22 points 1 day ago

Hell, I had a geology lab where we were explicitly told we'd have to identify minerals by taste.

Unfortunately one of the other criteria was testing how a mineral reacted to acid... Which was listed higher on the worksheet...

Didn't taste that bad, as far as acids go.

[–] OwOarchist@pawb.social 13 points 1 day ago (1 children)

Wouldn't a scratch test have worked just as well? Quartz is extremely hard, halite is relatively soft. Scratch one against the other, and whichever one is damaged is salt.

[–] ryannathans@aussie.zone 16 points 1 day ago (2 children)

Rub it against your phone screen and you'll find out pretty quick

[–] beyoublahaj@lemmy.world 9 points 1 day ago (3 children)

It scratches at a level salt, with deeper grooves at a level quarts

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[–] PrimeMinisterKeyes@leminal.space 6 points 1 day ago (1 children)

One dissolves in water, the other doesn't.
But licking also works.

[–] glitch1985@lemmy.world 3 points 1 day ago

Butt licking also works.

[–] Etterra@discuss.online 20 points 1 day ago

I'm pretty sure that's just how scientists did things up until like 1952.

[–] melfie@lemmy.zip 21 points 1 day ago

highest grade in 3 years

Meaning accidentally got a few right?

[–] baronvonj@piefed.social 35 points 1 day ago (7 children)

man, how do you even get LSD these days

[–] halvar@lemy.lol 2 points 40 minutes ago

shit now we got cops on lemmy

[–] nullspace@lemmy.world 18 points 1 day ago (1 children)

You gotta go to the source: the CIA.

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[–] Grilipper54@sh.itjust.works 13 points 1 day ago* (last edited 1 day ago) (1 children)

Go to a music festival. The United States is flooded with LSD right now.

[–] crypt0cler1c@infosec.pub 5 points 1 day ago (8 children)

No, it is most definitely not. It's flooded with gel tabs of cheap synthetics.

There is a laundry list of odorless tasteless microgram dose psychedelics that are extremely comparable to LSD and indistinguishable except to an extremely advanced psychonaut.

If you go to a festival and take drugs and think that it's real LSD, that's laughable ignorance. Statistically, it's almost impossible to find LSD.

[–] Flames5123@sh.itjust.works 33 points 1 day ago

I go to Shambhala and they do free drug testing. Every LSD I get, I get it tested. The Ehrlich reagent test turns purple for indoline structures and it’s so much easier to get LSD than the other LSD prodrugs that would cause this to be purple, like 1P-LSD, 1V-LSD, or 1B-LSD. Research from both DanceSafe and The Loop show that actual and pure LSD dominates over synthetics at music fests. I’d love to see your sources because I’m intrigued.

[–] Grilipper54@sh.itjust.works 16 points 1 day ago* (last edited 1 day ago) (2 children)

Its real. This isn't 2009-2014 anymore. People have test kits at festivals too that will test what you've acquired for free.

I've been taking psychedelics for almost 20 years now.

I'm unsure where your statistics is coming from.

The niche bass music scene is flooded with real dose.

[–] SpongyAneurysm@feddit.org 1 points 44 minutes ago

We had drug prevention class (as a project week) in high school. One street worker guy just informed us, what is commonly used and what these drugs do, their dangers and safety precautions, if we decide to take them anyways. That was way better, and more effective, than the "drugs are bad"-speech the cop gave the other day.

LSD was the only one, that sounded somewhat intriguing to me. Never tried it, because I'm worried about bad trips and possible permanent damage. What is your take on that?

[–] sepi@piefed.social 3 points 1 day ago (1 children)
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[–] Leviathan@lemmy.world 7 points 1 day ago

A friend of mine kept telling me you couldn't find lsd anymore so I looked it up. There was a mass testing done a few years back that wanted to see what people were really buying when they bought lsd and it turned out it was almost all pure lsd and within expected dose.

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[–] dharmacurious@slrpnk.net 8 points 1 day ago

If you find out, hook me up

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[–] WeirdGoesPro@lemmy.dbzer0.com 59 points 1 day ago (7 children)

The best game of bowling I ever played was on 200ug of LSD. It does seem to activate your sensory experience in ways that give you greater ability sometimes.

The hard part is having it do that consistently. I strongly believe that research into lysergimides could lead to the discovery of a variation that makes you more coordinated and creative without the hallucinogenic effects.

[–] webghost0101@sopuli.xyz 23 points 1 day ago (2 children)

There is mild historical proof that that early humans consumed grains contaminated with ergot (what lsd is derived off)on purpose before hunting.

The theory is that it gave them hightend senses to spot animals. In stoned ape theory this coincided with the beginning of creating language and art.

[–] gibmiser@lemmy.world 17 points 1 day ago* (last edited 1 day ago) (2 children)

stoned ape theory

Fucking lol wiki

[–] webghost0101@sopuli.xyz 17 points 1 day ago* (last edited 1 day ago) (1 children)

Yeah i don’t recommend taking that guys word on it.

I was careful with my wording for a reason.

The concept has some merit though, just leave it to actual scientists to verify such.

Ny times article from 1 week ago: https://www.nytimes.com/2026/09/09/science/scientists-discover-the-earliest-evidence-of-drug-use-in-really-old-teeth.html

“Human use of psychoactive plants, in particular, was a lot more common in the ancient past than we can appreciate at the moment,” said Adam Brumm, a professor of archaeology in the Australian Research Center for Human Evolution at Griffith University who led the study.“I think it was probably a very deeply rooted aspect of human behavior,” he added.

Dr. Brumm and his colleagues unearthed the jawbone and teeth of the ancient forager in 2017 at a cave called Leang Bulu Bettue. Although Sulawesi is home to the oldest known rock art in the world, dating back some 67,000 years, the discovery of the bones was the first time any skeletal remains of prehistoric humans had been found on the island.

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[–] Soggy@lemmy.world 7 points 1 day ago

It's garbage "science", Lamarckian evolution for a new generation.

[–] terranoid@lemmy.cafe 10 points 1 day ago* (last edited 1 day ago)

I really really doubt that people ate ergot infected grain on purpose. Ergotism led to like black limbs when they fucked up and ate infected grain.

People throw around ergot theory WAY more than is rational. It was not a generic solution to Salem witch trials, did not appear everywhere in every climate, and was very obvious in the grain usually showing up as black horns on specifically your rye that grew in a cold and wet climate.

You would have to have let it grow, then grind the rye still and process it ignoring the black horns on it, then sell that flour or eat it. This was a major fuck up and not just bread that got moldy. It was rye that had very obvious infection and still got processed. Bread doesn't just grow ergot mold after being baked.

There's probably way more psychedelics they could have fucked with to hunt and even then I doubt it unless it was like a ritualistic/religious activity related to hunting.

Another thing on historical myths... The Salem witch trials weren't just people attacking mid wives and herbalists. Herbalists were called physics and respected as not witchcraft. They didn't care if you brewed people teas to heal ailments and shit like that. That wasnt considered magic and evil.

People literally still practiced folk magic and there were some girls admitting to doing Venus eggs, where you crack an egg over water and divine what trade your future husband would do. Divination was legitimately considered evil. And when they confessed and repented, they were forgiven and led normal lives.

Interestingly, it was the people who confessed and repented that survived these times, and likely just a bunch of shitty cops going after people who the confessers pointed the finger at who said "lol no of course I didn't sign my name in the devil's book". Several people who didn't confess died, people who others said they saw them do it. And some dude who was actually going around telling peoples futures got executed.

But it was all a bit more complicated than ergotism or even plain misogyny.

AND ANOTHER MYTH... There is no real evidence your brain floods you with dmt when you die. They did experiments with mice. No proof. It's a wild ass theory, because it's in our brain and people see weird shit.

[–] prettybunnys@piefed.social 10 points 1 day ago (1 children)

Best game of counterstrike I ever played was while coming up on acid.

I remember it so well because there came a point where the acid became too much and my death was visceral and I fell from my chair.

And 17 year old prettybunnys dad ran up stairs to make sure the crash and scream he’d heard wasn’t me actually dying.

Anyways, yeah … for a brief window I feel more lucid than ever.

[–] jaycifer@lemmy.world 4 points 1 day ago

Oh man, when I was just getting into acid I took a tab one Saturday morning and watched Fellowship of the Ring Extended in the frat living room. Felt like watching a DnD campaign. As it was ending one of the guys and his friend I hadn’t met walked in setting up tables and their PCs. I asked what was going on and he was like “Jaycifer, today is the LAN party, did you forget?”

I had, I played Quake III for the first time that evening. I had never really played a boomer shooter before, but that was one of the most intense multiplayer experiences I’ve ever had. I got my hands on a rocket launcher and I swear I had a sixth sense for knowing where someone was going to be to blow them up. I’m not normally one to trash talk, but I talked so much shit throwing out “get pwned” and “git gud.” It was so awesome!

[–] themaninblack@lemmy.world 11 points 1 day ago

Doc Ellis vibes

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[–] Danarchy@lemmy.nz 12 points 1 day ago
[–] carrylex@lemmy.world 6 points 1 day ago
[–] Denjin@feddit.uk 17 points 1 day ago (2 children)

The striking thing for me here is the final examination for a geology course is to identify rocks. Isn't that like the most basic bit of geology?

[–] ryannathans@aussie.zone 6 points 1 day ago (2 children)

What else do you do in geology?

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[–] JustPlainDave@lemmy.zip 9 points 1 day ago (2 children)

My geology teacher encouraged us to taste the rocks. 🤷

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[–] Hupf@feddit.org 11 points 1 day ago
[–] Blue_Morpho@lemmy.world 14 points 1 day ago

The best part was their final was a power point presentation.

[–] Zachariah@lemmy.world 8 points 1 day ago
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