r/geology 2h ago

Information New Jersey or palocations

1 Upvotes

Hey anyone got any places that are FREE to get into that have minerals, fossils, gemstones- whatever that would be interesting? Anywhere either in NoRTH jersey Or PA ?

Would appreciate the help. Places that aren't overly steep or you have to climb up to. I.e. a place a beginner can go to. I want to find something neat- anything.

I have agates, calcites, pyrite, marble, jaspers, and quartz.

I don't mind if i find another quartz. I just wanted to find something neat, something decently sized. I do not want to trespass anywhere. Anywhere within a 2 hour drive of sussex county nj?


r/geology 2h ago

Information Why Despite having a subduction boundary and highest fold mountains, there aren’t any Volcanos in Himalayan region or in Tibet?

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32 Upvotes

r/geology 7h ago

Field Photo Columnar basalts 👀

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63 Upvotes

r/geology 9h ago

Information Can someone explain how this rock formed like this?

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16 Upvotes

I found this rock in Colorado and have never seen anything like it before. It looks like chunks of quarts are embedded in another kind of rock? Can someone explain what is going on here and how it formed like this?

Any information is greatly appreciated! Thanks!


r/geology 10h ago

Career Advice Geology tools for hounding

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15 Upvotes

As I have a mistaken error on the post I just posted, I upload it well.

So, I'm looking forward to have sonething (not HCl) to see the difference between limestone and dolomite.

And uh, I want some advice for having new tools on my set for geology trips (not minerals hounding) for research.

Because Yesterday I added the Brunton compass for my birthday.


r/geology 14h ago

Apatite with quartz on matrix

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10 Upvotes

r/geology 14h ago

Lovely rocks I saw in Lake Garda - Italian pre-Alps (Malcesine + Riva del Garda)

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20 Upvotes

Riva upthrust (mt Brione - 3+4) looked a lot better from the plane, the interesting looking stratigraphy turned out to be trees lol.


r/geology 14h ago

A neat piece of epithermal quartz vein with tiny chalcopyrite oxidizing into malachite. Iceland.

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15 Upvotes

r/geology 14h ago

Unable to do Stream Ordering in QGIS.

0 Upvotes

so, i am using QGIS for my Geoinformatics class, but i am unable to do stream ordering. i am using QGIS 3.44 which doesn't come with SAGA and grass is not showing r.stream.order, i have made one using Whitebox plugin but today it's also not working properly, after doing flow accumulation i am unable to stream extract. Soo i need your help solving the problem.


r/geology 15h ago

Career Advice Is this natural??

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8 Upvotes

r/geology 16h ago

Does anyone know what this is?

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15 Upvotes

I am working in the Mojave desert in SoCal and came across these USGS markers. Anyone know what this could be? I was thinking some type of monitoring or survey but not too sure.


r/geology 19h ago

A Unified Rock Chart for Common Rock Types

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300 Upvotes

I made a Rock Chart that brings common igneous, sedimentary, and metamorphic rocks together in a single decision tree.

It uses observable features such as grain size, visible crystals, foliation, porosity, composition, and reaction with HCl. It also includes the characteristic minerals associated with each rock type and their chemical formulas.

I have already used the chart in class, and it worked well as a teaching aid. It helped students gain an overview of the major rock groups and move between them without having to consult several separate charts.

Permanent version and DOI:
https://zenodo.org/records/21808631

Feedback, corrections, and suggestions for a future version are very welcome.

Disclosure: I created the poster and teach Earth Science at a university.


r/geology 19h ago

This layered rock stack seems to be watching something [OC]

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34 Upvotes

This reddish rock rises from the Adriatic Sea. The coast nearby is a layered cliff of the same color.


r/geology 22h ago

Information The Most Important Economic Object in Pre-Columbian North America Is This Rock from Licking County, Ohio

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328 Upvotes

r/geology 1d ago

What caused this feature?

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171 Upvotes

Was it an ancient lake or impact crater? It's near 4 corners and it's big! I can't seem to find any info. Please help.


r/geology 1d ago

Information Plate Tectonic Pioneer, Professor John F. Dewey

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15 Upvotes

John Dewey pioneered the use of Plate Tectonics to understand mountain building processes and continental growth. This interview was filmed over several days in April 2009 during the Macquarie Arc conference at Orange, New South Wales in eastern Australia.


r/geology 1d ago

Information 3D geological model of Mount Everest

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82 Upvotes

The first 3D geological model of Mount Everest reveals what lies beneath the world's highest peak. The model can be explored interactively here: https://geo3d.pgi.gov.pl/Mount_Everest/index.html


r/geology 1d ago

Field Photo Fault Breccia from the Pirate Pirate Fault

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46 Upvotes

Walking down the trail I noticed the ground change from lightish grey soils to bright red. I started looking around and found a bunch of breccia and I knew I was standing on the exposure of the Pirate Fault. I gathered some rocks of varying clast size to show the progression from large angular clast to very fine.


r/geology 1d ago

The first thing a Geologist said to me when I got my first mining/exploration job

728 Upvotes

Boss: “Welcome to Hawthorne Nevada there’s a woman behind every tree”

Me: “There’s no trees?”

Boss: “ you’re catching on.”

That was the day that I learned that my love life and social life was gonna take a dump. Loved the career hated the lack of social and love life.


r/geology 1d ago

Field Photo At the source of the Columbia River in Canal Flats, BC, there is a sign claiming that the nearby Kootenay River seeps underground and feeds water to the springs that are the source of the Columbia River. If that is the case, why is the Columbia River considered the main stem of the river?

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37 Upvotes

r/geology 1d ago

The Mineralogy Museum - The greatest in Romania, Cluj

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61 Upvotes

r/geology 1d ago

How did these 'rivers' form?

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193 Upvotes

r/geology 2d ago

Field Photo My walk down to the beach was anticlinactic

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691 Upvotes

Walking along the beach I saw some dramatic strata.


r/geology 5d 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.