/r/geologyporn

Photograph via snooOG

High resolution images of rocks and minerals.

Love Stone Age monuments? Check out /r/MegalithPorn!


Submission Rules

  • Include some context in the title (such as the type of mineral, crystal or rock).
  • Include the resolution in [brackets] in the title.
  • Only submit static images.
  • Videos, collections, interactive images/websites, and articles are not allowed.
  • GeologyPorn is for rocks & minerals only. If you are submitting an image of :
    • landscapes, read this.
  • Make sure your image is hosted by an approved host.
    • Original source is allowed and preferred over the approved hosts. If your submission is not on the list of approved hosts, but it is an original source, please use the tag [OS] so your submission is not removed in error. If your image is rehosted from another approved host it will be removed.
    • If you took the photo yourself, you can signify this by using the tag [OC] (original content) and after 24 hours you will be given special flair. If you don't receive flair after a few days feel free to message the mods.
  • If you have any questions check out the FAQ.

  • Subscripts and Superscripts are in use, according to the following syntax:

    • Superscript

    Fe2+ is written as Fe^(2+)

    • Subscript

    O2 is written as O*2*

    Arrows can be copied and pasted from below

    Equilibrium arrow: ⇌

    Right arrow: →

    Please use these to help out fellow redditors that haven't studied chemistry!


    Other subreddits you may enjoy:

    /r/geologyporn

    86,196 Subscribers

    111

    Tube framed banded agate ❤

    2 Comments
    2025/01/22
    13:39 UTC

    265

    Magnificent with red botryoidal formation. Agate

    6 Comments
    2025/01/14
    07:17 UTC

    120

    Mineral that looks like it is not from this world - NHM Vienna

    When I was younger, I always tought that asteriods look exactly like this egg-shaped Adradit - turns out they don't.

    2 Comments
    2025/01/08
    12:48 UTC

    215

    Potamon sp. Crab Fossil

    20 Comments
    2025/01/03
    14:35 UTC

    65

    This hydrothermal vein that's 500' long

    2 Comments
    2025/01/01
    18:12 UTC

    26

    Like a slice from the short fur of an animal's coat. Sagenite Agate

    0 Comments
    2024/12/29
    05:59 UTC

    109

    Was exploring an abandoned mine today and found an amazing hanging wall / footwall along the same fault.

    The ore body (gold primary, silver secondary) was mined from two directions. I flipped the footwall photo so it was in the correct orientation to line of the faulting. Location: Sheep Hole Wilderness, San Bernardino County, California. Major units: pre-Cenozoic granite and metamorphic undivided rocks and Mesozoic granitic rocks, unit 3.

    3 Comments
    2024/12/29
    00:42 UTC

    0

    Go ahead, tell me I’m on the wrong sub

    Found this baby like 10 years ago

    7 Comments
    2024/12/21
    15:34 UTC

    59

    Nature's nighttime firework show! The only difference is, this show doesn’t sell tickets, but a warm welcome is guaranteed. :D Strombolian eruption - Stick Agate

    2 Comments
    2024/12/13
    05:08 UTC

    260

    Thunder Egg

    14 Comments
    2024/12/07
    06:33 UTC

    82

    It could definitely be one of Pollock's works. :) Pseudomorph agate

    2 Comments
    2024/11/28
    14:16 UTC

    123

    Surrealist Thunder Egg ❤ 😄

    3 Comments
    2024/11/24
    06:59 UTC

    82

    "Lord of bugs" or "Hades sitting on his throne" - Waterline Agate

    8 Comments
    2024/11/19
    05:09 UTC

    59

    Large Agate - I fall in love <3

    6 Comments
    2024/11/17
    05:36 UTC

    44

    High-quality suspicious rock

    3 Comments
    2024/11/14
    21:46 UTC

    53

    Mica and Albite, Brazil [OC]

    This just looks so edible!

    5 Comments
    2024/11/11
    02:20 UTC

    101

    Big Thunder Egg

    9 Comments
    2024/11/08
    11:12 UTC

    25

    Cassiterite and Arsenopyrite, with Quartz [OC]

    I had not heard of Cassiterite until this piece

    6 Comments
    2024/11/08
    04:54 UTC

    64

    Fifty Shades of Quartz [OC]

    Lemon Quartz on the Left, African Citrine, Smokey Citrine, and the last two on the Right are Smokey Quartz

    9 Comments
    2024/11/06
    05:55 UTC

    32

    Was asked to repost, here it is with the VG circled.

    Slightly zoomed in with circled VG along with the original posted photo.

    23 Comments
    2024/11/06
    03:03 UTC

    132

    Red Beryl, and Topaz, found at Topaz Mountain, Utah, United States [OC]

    The Red Beryl, or Bixbite, and this Topaz cluster were found on different days, different visits, to the same location. I placed them together for this photo. I have found lots of Topaz at Topaz Mountain, however, this is the only Red Beryl I own.

    3 Comments
    2024/11/04
    03:39 UTC

    29

    The surface of this stone looks like a miniature map of nature. The twists and turns in shades of brown and orange almost look like small mountain ranges or hills. The dark gray areas remind of deep valleys or mysterious caves. And the empty spaces in the middle look like dried up lakes / geysers!

    2 Comments
    2024/11/02
    06:45 UTC

    113

    Banded Iron Formation [OC]

    Such a fantastic piece, I love the colors

    6 Comments
    2024/11/01
    23:00 UTC

    31

    Visible gold.

    Coarse visible gold from Newfoundland, Canada.

    22 Comments
    2024/11/01
    00:45 UTC

    80

    Piece of the Gibeon Meteorite [OC]

    I had the opportunity to photograph a small piece of the Gibeon Meteorite, a piece that has been sculpted. The weight of the iron and nickel, Widmanstätten pattern in it; such a fantastic piece, and I love it!!

    15 Comments
    2024/10/29
    04:25 UTC

    37

    Hanksite [OC]

    I only heard about this mineral about a year ago, and it still fascinates me!

    9 Comments
    2024/10/25
    19:33 UTC

    194

    Tiny Agate

    11 Comments
    2024/10/24
    05:54 UTC

    35

    Manganoan Calcite [OC]

    This is a recent acquisition. The structure on this is so fascinating, I love it, and had to share!

    0 Comments
    2024/10/22
    22:03 UTC

    87

    Arkansas milky quartz cluster

    2 Comments
    2024/10/22
    21:08 UTC

    26

    Topaz & Quartz Minerals, Massive size Combo

    1 Comment
    2024/10/22
    13:44 UTC

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