r/geology 22h ago

Identification Requests Monthly Rock & Mineral Identification Requests

2 Upvotes

Please submit your ID requests as top-level comments in this post. Any ID requests that are submitted as standalone posts to r/geology will be removed.

To help with your ID post, please provide;

  1. Multiple, sharp, in-focus images taken ideally in daylight.
  2. Add in a scale to the images (a household item of known size, e.g., a ruler)
  3. Provide a location (be as specific as possible) so we can consult local geological maps if necessary.
  4. Provide any additional useful information (was it a loose boulder or pulled from an exposure, hardness and streak test results for minerals)

You may also want to post your samples to r/whatsthisrock or r/fossilID for identification.


r/geology Dec 01 '25

Identification Requests Monthly Rock & Mineral Identification Requests

8 Upvotes

Please submit your ID requests as top-level comments in this post. Any ID requests that are submitted as standalone posts to r/geology will be removed.

To help with your ID post, please provide;

  1. Multiple, sharp, in-focus images taken ideally in daylight.
  2. Add in a scale to the images (a household item of known size, e.g., a ruler)
  3. Provide a location (be as specific as possible) so we can consult local geological maps if necessary.
  4. Provide any additional useful information (was it a loose boulder or pulled from an exposure, hardness and streak test results for minerals)

You may also want to post your samples to r/whatsthisrock or r/fossilID for identification.


r/geology 2h ago

Plate Tectonics Simulation

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59 Upvotes

Hi everyone! I’ve been working on a procedural plate tectonics simulation. This project started from my interest in geology and plate tectonics, and being curious about how different landscapes form on Earth. I wanted to share the latest version here and see how the overall evolution looks to you.


r/geology 13h ago

Map/Imagery Nepal Mountain just hours before glacier collapse. Smaller falls captured .

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237 Upvotes

A tourist captured these images without thinking anything else from some distance away possibly from an observatory.

First picture 8:27 am

Second picture at 9:33 am

Third Picture with some collapse 10:21 am, he heard some rumblings at around 10:30 am as well. The pictures show what he thinks is rock collapse , before the glacier gave away from lack of support underneath. His explanation.

Picture 4 aftermath.

around 30 minutes later of the 3rd picture, the collapse occurred . CCTV time border at station 10:59.. an estimated 7 minutes to reach that place.


r/geology 29m ago

[XKCD] Geology Class

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Upvotes

r/geology 1d ago

Xkcd has been on a roll with hilarious geology comics lately. Here's today's strip.

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450 Upvotes

r/geology 2h ago

Geoscience Careers Fair, UK (Nov 2026)

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3 Upvotes

It seems like the Geological Society of London holds a careers fair every year, sometimes in London and sometimes somewhere else. This year it's in London at their HQ on Wednesday 4th Nov. Has anyone been before? Is it good? Are there companies to talk to who are hiring? Is anyone else going?

https://www.geolsoc.org.uk/events/careers-day-2026/


r/geology 1h ago

Information Don't Miss These Mono Basin Tips! #TravelTips #outdoors

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Upvotes

r/geology 1d ago

Field Photo "I just can't walk by this without taking a strike and dip."

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245 Upvotes

Doing some field work in volcanic sediments of the Oligocene Ohanapecosh Formation, central Washington.

Bonus second photo, contact of the Oligocene Ohanepecosh and 16.7 Ma Grand Ronde Basalt of the Columbia River Basalt. Two little geologists (white shirt) between the trees for scale.


r/geology 15h ago

Quality loupe for my retiring geologist/mineralogist father

9 Upvotes

Hi all,

My dad is retiring and I want to get him some kind of cool rustic loupe triplet (I think that’s what they’re called??). A pocket magnifying glass that you flip out to inspect the gems/rocks etc

He’s been a geologist/mineralogist for 45 years and I thought it would be cool to get him a last little tool and like a leather case for it.

It seems like there’s not just shops for them online or like dedicated geology brick and motor places? I am not a geologist so I have no idea really about the magnifying glass scene.

If anyone can suggest cool brands, maybe with cool aesthetics and stuff? Something that’s like nice to look at and feel in the hand?

Sorry for ignorance and thanks for your help!


r/geology 1d ago

The way these rocks bend

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116 Upvotes

r/geology 2d ago

Before and after pictures of the boulder that was rolling in Nepali flood.

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2.5k Upvotes

It was not a normal bounder. It was a monument on which Treaty of Betrawati was signed in Sino-Nepali war in October 2, 1792.


r/geology 1d ago

Thin Section Perfect natural shaped green Fluorite

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15 Upvotes

r/geology 2d ago

There must be thousands of other potential glacial flood locations in the Himalayas.

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463 Upvotes

I’m sure people are studying it but as a mountaineer it seems like there must be many many other locations just like the one that triggered the debris flows in Tibet and Nepal. Pic. Nohku Crags, Colorado


r/geology 1d ago

Map/Imagery Nepal Disaster Update: Where Did All the Water Come From + A Second Landslide?

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58 Upvotes

Similar to the earlier video I shared, but with some more insights into the local geology and highlighted things like remnant ice underneath the gravel of the valley floor, so I thought it was a worth sharing also.


r/geology 2d ago

Information Master's degree in Latin America

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62 Upvotes

What master's degree or doctorate in geology could I pursue to earn a high income without having to be in the field for several weeks or months at a time? I'm not looking for something that doesn't require me to be in the field at all, just something that doesn't require such long periods of time, like work on oil platforms. Something balanced between fieldwork and earning enough to ensure financial stability? (Images of the geology of my country)


r/geology 1d ago

Geology study

3 Upvotes

Hello everyone!

I want to study geology in few years, first want to finish current course, and i want to know if there are any books that you guys recommend to already becoming familiar with geology

Thanks in advance!


r/geology 18h ago

Meme/Humour Incredible things are happening in Zimbabwe

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0 Upvotes

r/geology 21h ago

big blocks of dry earth

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0 Upvotes

r/geology 21h ago

Does anyone know what study/paper Randall Carlson is referring to with the graphs in JRE #606? After a relatively quick search I couldn't find anything matching the graphs

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0 Upvotes

r/geology 2d ago

Field Photo Curious Sierra Nevada Outcrop

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76 Upvotes

I came across this curious outcrop just to the east of Garnet Lake NW of Devils Postpile National Monument in the Sierra's on a recent trek along the John Muir Trail. I've marked it (tiny red X, on the east side of Garnet Lake) on an clipping of a USGS 1965 geo map of the area. The rocks are mapped as Triassic or Jurassic volcanics, either undifferentiated tuff/andesite or dacite. I thought orbicular granite when I saw it first and got quite excited - even though it didn't really look pictures I'd seen of that. I'd love to hear what folks think this is.


r/geology 1d ago

The Grand Canyon

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8 Upvotes

This 90 min doc is stunning, beautiful, humbling. Enjoy.

From the_pov_channel
Utube.


r/geology 2d ago

Orbicular Diorite, Saga Prefecture, Japan

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48 Upvotes

r/geology 2d ago

Photos of bedrock/glacial collapse

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1.1k Upvotes

Just found these photos taken by a Chinese researcher in a Nepal Times story. Not a geologist, but it appears to be more of a bedrock collapse, at least from the angle in the photos. Article link: https://nepalitimes.com/nepal-avalanche-was-live-on-drone-camera


r/geology 1d ago

Map/Imagery What causes these straight lines in the Wichita Mountains? I was advised to ask this here, I’m just curious and hoping to find an answer

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11 Upvotes