All About Geodes and How They Are Formed

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  • Опубліковано 26 січ 2025

КОМЕНТАРІ • 420

  • @Lew114
    @Lew114 6 років тому +86

    We gave our kids a couple of small geodes for Christmas. They just cracked them open and were amazed. Thanks for making this video to help explain!

  • @rubik8529
    @rubik8529 4 роки тому +81

    Who all came here after seeing amethyst geode opening video

  • @sidewaysofieo5149
    @sidewaysofieo5149 3 роки тому +4

    I have to write a narrative story about a rock. I got an amethyst and so here I am doing my research, my teacher better be ready for a heart wrenching story with a rollercoaster of emotions.

  • @caitlin5770
    @caitlin5770 6 років тому +396

    When youtube teaches you more than science class....😂😂

    • @applepen7727
      @applepen7727 6 років тому +6

      Dreambeam I know right

    • @applepen7727
      @applepen7727 6 років тому +8

      I don’t know why teachers think it bad.....

    • @applepen7727
      @applepen7727 6 років тому +2

      Dreambeam yup

    • @nethangarvey1293
      @nethangarvey1293 6 років тому +4

      @Seth Ellison that's exactly right. That's why we should become communist, becuase you can't be a slave if you've already starved to death.

    • @richiethais8442
      @richiethais8442 5 років тому +1

      LOLOLOLOLOLOL

  • @Lando9673
    @Lando9673 4 роки тому +7

    So in 5 grade science we just learned about geodes and now I have a big thing for gems. We watched this vid in science that day.

  • @Insanegameelaine
    @Insanegameelaine 3 роки тому +31

    Yes, in fact I did happen to form in mineral deposits seeping into a porous rock cavity formed by co2 gas trapped inside molten rock! Thank you for asking!

    • @dudoklasovity2093
      @dudoklasovity2093 3 роки тому +1

      me too! but she isn’t the fortunate one. boo-hoo!

  • @minimewy4310
    @minimewy4310 6 років тому +9

    My love for minerals started when I was 9 and my teacher mentioned quartz. My only friend was ill that week so I spent recess looking at different rocks, trying to find some. I read a book on geology, I bought crystals everywhere I could and on a field trip to a museum with a geology room I took several hundred pictures. I stopped obsessing for a while but now it's even worse than before thanks to these videos...

    • @gems
      @gems  6 років тому +1

      That's incredible! Glad we could help re-spark your interest/love for geology!

  • @-Slinger-
    @-Slinger- 6 років тому +22

    I'm not a geode yet, but I àm full of hot air.

  • @tobymcgroby8967
    @tobymcgroby8967 4 роки тому +6

    2:55 That was adorable!😍😍👏👏

  • @AlottaBoulchit
    @AlottaBoulchit 6 років тому +21

    I remember watching a show on the science channel about that one cave full of ridiculously giant crystals once. I was fascinated (yet terrified...cave phobia) by that place so i was researching it and read someone call that place a giant geode. WOULD that giant crystal cave be considered a geode? It would also be cool if you could do a video on that subject sometime!

    • @GeologyofGemsMinerals
      @GeologyofGemsMinerals 6 років тому +4

      The Naica gypsum crystal caves are considered vugs, not geodes.

    • @AlottaBoulchit
      @AlottaBoulchit 6 років тому +1

      Geology of Gems & Minerals oh wow ! what's the difference between vugs and geodes? :0!!

    • @GeologyofGemsMinerals
      @GeologyofGemsMinerals 6 років тому +5

      Geodes are a secondary feature (not formed at the same time as the host rock) and typically have a tough exterior "rind," even in the case of Brazil and Uruguay. Basically, you'll get a massive layer of a mineral or mineraloid (quartz, agate, ...) completely enclosing a void. A nodule, or in the case of agate a thunderegg, is similar but completely infilled. A vug is any open space in rock containing crystals; they can be primary or secondary.

    • @AlottaBoulchit
      @AlottaBoulchit 6 років тому +1

      Geology of Gems & Minerals Oh wow! Thanks for explaining that! Rocks, crystals and gems are so fascinating!😍

    • @kfl611
      @kfl611 3 роки тому +1

      And that cave was rather deep under ground too, not like you could get scared and just turn around and run out. ha ha ha.

  • @matthewmccabe2835
    @matthewmccabe2835 6 років тому +25

    Once I saw a piece of pure raw iron, that’s when my rock fanatic mind started to kick in.

  • @MrCatwalkonramp
    @MrCatwalkonramp 4 роки тому +7

    Well she might not be a geode. But she's definitely a gem.

  • @MomoTheFfidyll
    @MomoTheFfidyll Рік тому

    We went on a class field trip to a museum, and it had plenty of these pretty stones. I saw a basket of them at the gift shop and just had to have one. I've never seen one up close before!! They are my favorite stones ever

  • @smoreschnapps8868
    @smoreschnapps8868 3 роки тому +4

    I really love the enthusiasm you have for rocks it definitely makes your videos enjoyable. I hope you keep making more! I do want to help out with some of the facts/science you talk about in this video in an effort to make things more accurate and a bit less confusing.
    One thing was the discussion of how geodes form in lavas. It was a good description of how geodes can form in basalt and andesite (two different types of lava), but it isn't how geodes form in rhyolitic lava. Another thing was how you said quartz crystals are generally found in igneous rocks whereas silica is found in sedimentary rocks. You sort of treat silica as different from quartz, but quartz is made of silica (silica = silicon + dioxide). Also, quartz crystals are one of the most common crystalline structures found in geodes from sedimentary rocks with good examples being Keokuk Geodes and Moroccan Geodes. Finally, you talk about how a geode is different from a thunderegg. The explanation for how a thunderegg forms wasn't very accurate and the whole "geode vs thunderegg" thing really confuses the relationship between the two. A thunderegg is a specific type of rock whereas a geode is a feature that any type of rock can have, that feature being a hollow interior lined with crystals. Whether the inside of a thunderegg is solid or hollow doesn't change the fact that it's still a thunderegg, so a thunderegg with a crystal-lined hollow interior is a thunderegg that's also a geode. This happens with septarians too. Most septarians (a specific type of rock that forms in sedimentary formations) are completely solid on the inside but some can develop hollow interiors lined with calcite crystals.
    Paul Colburn wrote a really great book on thundereggs and his theory on how they form. He spent decades digging thundereggs from locations across the western US and has done more to advance our knowledge of thundereggs than anyone else. I would suggest checking it out if you can, it will help with understanding thunderegg formation and also why it's inaccurate to focus on the "geode vs thunderegg" comparison.

  • @thammer302
    @thammer302 5 років тому +2

    This is a superb explanation, much better than Wikipedia’s article on geodes. I really liked the explanation of how the mineral-laden solution enters the hollow portion to deposit the minerals and form crystals.

  • @danielrosales5968
    @danielrosales5968 2 роки тому +1

    Best explanation ever with the most enthusiastic and clear information. Gray job!!

  • @natking1u1z99
    @natking1u1z99 4 роки тому +1

    Any recommendations for purchasing good quality geods?

  • @MrSenset
    @MrSenset 6 років тому +32

    I know all about gems. I just watched a 4 minute and 46 second video that was hosted by one. 8-)

  • @gitanjalitiwari9407
    @gitanjalitiwari9407 Рік тому +1

    I understood every single thing , I have to make a ppt on this and I am sure everyone will love my ppt in school

  • @choco.truffles163
    @choco.truffles163 5 років тому +6

    I already saw one..in the mall with a purple shiny stones inside..its really beautiful😊

    • @Juan-qz4eg
      @Juan-qz4eg 3 роки тому

      The purple gems inside is amethyst and rarer than the normal white and clear geodes

  • @Lil-Dragon
    @Lil-Dragon 6 років тому +5

    Wish I had a gemstone collection but my video game and book obsession doesn't come cheap. They are all stunning though.

  • @manofthetombs
    @manofthetombs 6 років тому +32

    On a totally different subject ... she is absolutely beautiful in form and face!

  • @Rookie_Rockounding
    @Rookie_Rockounding 6 років тому +3

    Great explanation!!!! Brilliant video!!!! Thank you!!!

    • @gems
      @gems  6 років тому

      Thank you!!

  • @cesarrobledo2583
    @cesarrobledo2583 5 років тому +1

    It’s 3am and I don’t know I ended up watching videos about geodes for over an hour.

  • @drinny26
    @drinny26 Рік тому +1

    I have a huge glacial erratic boulder in my yard. Is there anything inside it?

  • @nancyblair9862
    @nancyblair9862 4 роки тому +1

    Best info. ever! Great job!👏👏👏👏👏👏👏👏👏

  • @brianaseda1716
    @brianaseda1716 5 років тому +4

    this is going to help me with my science project and the science fair

  • @dmn818
    @dmn818 9 місяців тому

    I find some nice geodes around where I live. I found a whole one in a rock and cut it out with a grinder, then cut it in half and it has blue-grey layering with a small cluster of glass-clear crystals at the center. The outer shell is very rough and abrasive to the touch, would make a good pumice stone. I have also found fragments of red-white and green-white geodes.

  • @GeologyofGemsMinerals
    @GeologyofGemsMinerals 6 років тому +4

    In terms of geode formation, it is not true that it's more likely to get Qtz crystals in igneous rock and microcrystalline silica in sedimentary rocks. Also, only the Brazilian deposit has amethyst geodes. The other localities mentioned did not form in the same way (the amethyst did not form in secondary features like geodes, but in vugs).

    • @MsButterflysting
      @MsButterflysting 6 років тому

      Geology of Gems & Minerals should I enter my "be gneiss" joke here, or above?

    • @GeologyofGemsMinerals
      @GeologyofGemsMinerals 6 років тому

      MsButterFlySting80 I don't understand how this relates to my comment.

    • @MsButterflysting
      @MsButterflysting 6 років тому

      Geology of Gems & Minerals oh nothing really, it's the name of a formation I learned from some other UA-cam video on geology, rock formations & minerals. He had called it "Gneiss" pronounced as in the word nice. To be clear, I'm not disagreeing with you at all, nor was I being mean, so please take no offense. Sarcasm doesn't bode well with the comments on this very well for me does it? Actually, it may not have even been sarcasm, but rather a pun. A very dry pun intended joke. I should just delete it. Sorry!

    • @GeologyofGemsMinerals
      @GeologyofGemsMinerals 6 років тому

      No offense taken just wasn't sure what you meant in the context. :-) I am familiar with the pun.

    • @alfenito
      @alfenito 2 роки тому

      Thanks. Now I don't have to write this comment. I figure she meant that calcium based crystals are more likely in sedimentary geodes.

  • @moriscoley5328
    @moriscoley5328 Рік тому

    I was just curious about how geodes were made. This video was very informative and I have subscribed. Thank you.

  • @john-draftanimal
    @john-draftanimal Місяць тому

    My fascination came from climbing a long steep trail in the Cascades and 'steeling' from an old gem claim that I had to bushwhack to. It was a side rout to a mountain i wanted to climb., originally a gold prospectors trail, very steep. The thready barely there trail was known to climbers and listed in an old anglers book (1920ish) but the start from a logging road was deliberately obfuscated. Below a high pass, a faint side trail led along talus and brush down to a small forested lake. Above was another 600 ft side peak: Rock face on one side, crystal rich brown iron oxide containing talus on the other. Quite the steep climb using my ice ax up the duff/moss/needles/dirt to the talus field. Some boulders almost looked like red clay and broke apart easily. I pulled some nice quartz there. The 300 foot open face (I repelled from top) on the other side was partially exposed by mining I think but might have just been there. The rock massif was an intrusion area with small blast caves and natural looking fishers of mixed old sedimentary rock and silica rich volcanic rock and odd voids. The junction held the purple and green geode goods, a lot of color, but surprisingly not much obvious gold. Obviously hot mineral rich water got in there in multiple events to form larger crystals inside voids, then uplift and erosion to expose it, as well as volcanic activity nearby. Cool stuff. edit: Nice video, thanks.

  • @jeffreystiltner5796
    @jeffreystiltner5796 5 років тому +5

    I love this video mainly because I'm a science freak and I absolutely love anything like this I have a collection of colored Rock's and I own a bunch of sea shells and 3 geodes and my grandpa used to work in the mines so he has a geode he found himself and a small bag of minerals and and other things he got in the mines and I absolutely love it ❤️ I give this video a 👍🏽

  • @rebeccapower9226
    @rebeccapower9226 4 роки тому +2

    I found this very fascinating

  • @xX_ewwwewwie_Xx
    @xX_ewwwewwie_Xx 2 роки тому +1

    Pov your obsessed with pretty stuff watched she-ra,the owl house,amphibia,and the crystal gems and your favorite subject is science:

  • @MP3Martin
    @MP3Martin 4 роки тому +1

    I love this update

  • @LiveHappy76
    @LiveHappy76 2 роки тому +1

    Just stumbled onto and subbed to your channel.
    Amazing natural beauty every frame of this video! 😍 Cracked a first geode this year!

  • @062241kdp
    @062241kdp 4 роки тому +1

    I think I am in love! Thanks for the video, too.

  • @sayvilletech9135
    @sayvilletech9135 2 роки тому +1

    While I did not quite get everything in the video, I really liked it.

  • @joannparker1977
    @joannparker1977 4 місяці тому +1

    Agate geodes are my favorite. But they can't be found here in the U.S. as far as I know

  • @m.panieerselvam8894
    @m.panieerselvam8894 5 років тому +14

    UA-cam have the sweetest teachers ... 🌷😘

  • @richbulthuis7175
    @richbulthuis7175 4 роки тому +2

    Cool stuff, I always wonderd how amethyst was made, thanks for sharing your knowledge, keep rockin on.😎👍

  • @anjupathirana3952
    @anjupathirana3952 3 місяці тому +1

    This is a good part

  • @hoskinmage
    @hoskinmage 2 роки тому +1

    I own some ground on a mountain in south central Kentucky (hallsgap) and you can't walk 2 feet without seeing them I have found thunder eggs and everything else but since I read a story about a gentleman finding a diamond in the Carolinas so I'm wondering if the hundreds I've found if maybe(a big maby) I haven't found a diamond too. I didn't think diamonds was found in the United States? Someone please help an old man out?

    • @gitv2987
      @gitv2987 2 роки тому +1

      online states that not any natural occurring diamonds have been found in Kentucky.. But on a different note, during the 1760's Jonathan Swift buried a heaping $150.000 in silver bars and ore somewhere along the breaks of sandy river in a cave.. Said to be along Highway 80, near Elkhorn City around the base of Pine Mountain..

    • @hoskinmage
      @hoskinmage 2 роки тому

      @@gitv2987 ,,yeah I know in wolf County they have a Johnathan swift festival and I have read about a few people finding silver coins and traces of gold around the big sandy river,I think they call it glacier run off or something like that. At least I have a huge sup8of thunder eggs and different shapes and color crystals. Oh well I can dream

    • @gitv2987
      @gitv2987 2 роки тому +1

      @@hoskinmage thunder eggs look sweet.. wanted to make a video pretending to make one crack out of an egg..

  • @Inzanite_5562
    @Inzanite_5562 2 роки тому +1

    This is good for my project

  • @mayurarun
    @mayurarun 6 років тому

    This is so great. Quality of this one is top notch.

    • @gems
      @gems  6 років тому +1

      Thank you!!

  • @analikestea
    @analikestea 6 років тому +4

    This is so interesting!

  • @d.b.1176
    @d.b.1176 4 роки тому

    Can you please turn the music up?

  • @kmc55
    @kmc55 4 роки тому +1

    I love the Geode area rugs by Safavieh I saw at Lowe's The designs are so beautiful and unique. Getting an 8×10 rug for the living room.

    • @jrambo7495
      @jrambo7495 3 роки тому

      Now I'm intrigued!! Google here I come!

  • @sdwlmkcgarou
    @sdwlmkcgarou 3 роки тому +1

    Teacher: Today we are going to learn about how geode amethyst are formed.
    Kids who played minecraft for 13 years:

  • @snail9552
    @snail9552 3 роки тому

    I needed this to find out if i can find crystals in baishawan!

  • @jessedover6175
    @jessedover6175 2 роки тому

    Do you find many where you live?

  • @juliajean6731
    @juliajean6731 6 років тому +5

    lol for drNozman (i'm french and when i saw his background I was like :wait rewind that a bit)

  • @xavielho
    @xavielho 4 роки тому +1

    I wish my teachers were like her

  • @johnsopko2118
    @johnsopko2118 5 років тому +2

    Great vid but at times the music was kinda loud I couldn't hear everything you said

  • @연습화면
    @연습화면 4 роки тому +2

    I want to be a aerialists is that how u spell. It?

  • @bunnycow3043
    @bunnycow3043 6 років тому +3

    I don't even watch anything about rocks and somehow watching simplenailogy I got here.

  • @jac4YouTube
    @jac4YouTube 2 роки тому +2

    being born in the womb of my mother, not sure what kind of minerals surrounded me but I know we all have minute minerals inside of each of us, iron, magnesium etc. literally we are formed from the dust of the earth as it states in Genesis.

    • @persayda
      @persayda 2 роки тому +1

      That is beautiful. Thank you

  • @chrisdaniels4674
    @chrisdaniels4674 4 роки тому

    I have a question. Where do the rocks come from?

  • @wa4aos
    @wa4aos 4 роки тому

    Very well done..Thanks

  • @saraadams1391
    @saraadams1391 5 років тому +1

    Great video! You go girl!

    • @gems
      @gems  5 років тому

      Thank you!

  • @nethangarvey1293
    @nethangarvey1293 6 років тому

    Why do they spark when you hit then with steel?

    • @gems
      @gems  6 років тому

      Hi Nethan! It has everything to do with the pyrophoricity of iron. Iron combines with oxygen very quickly and generates heat when it does so. Rust happens slow enough and over a large enough surface area that the heat is negligible. However, if tiny particles of iron with a larger relative surface area to their mass are exposed to oxygen, they oxidize very quickly and cause enough heat to ignite flammable materials such as tinder or gas. The quartz or flint is used because it is harder than steel and can scrape particles of iron off of the larger mass fine enough to ignite.

    • @nethangarvey1293
      @nethangarvey1293 6 років тому

      @@gems Ooooh so it has nothing to do with the geod and is just because of steel in the tool. Cool, thank you!

  • @shahshah-wt2tn
    @shahshah-wt2tn 6 років тому +2

    There are 2 very rare gems in the video 8 , I have only focus on them 2 gems

  • @marshall1416
    @marshall1416 6 років тому +1

    Earth is so fascinating

  • @lkop09nowbterp
    @lkop09nowbterp 6 років тому

    You didn't address the formation of Keokuk Geodes.

  • @sidiscgolf8381
    @sidiscgolf8381 3 місяці тому

    It’s like Freshman year with Ms. Dean all over again. Too hot can’t pay attention. Came here to learn how geodes are formed, I literally have no idea what you said.

  • @carolball5887
    @carolball5887 Рік тому

    Please get rid of the background noise. Thank you

  • @scottowens940
    @scottowens940 3 роки тому

    You are a goofball 😉 and informed and articulate. And a goofball 😀 love it! Thanks

  • @ninjahombrepalito1721
    @ninjahombrepalito1721 6 років тому +1

    My interest in rocks and gems started with diamonds being the hardest material. And other crystals and fantasy. Btw, you look good with a hat on.

  • @bluewolf894
    @bluewolf894 2 роки тому

    Hi, I need help I got this from a friend from America, he found it in Florida when he went on vacation, he found it in the ocean

  • @21dahlgaardcarrie
    @21dahlgaardcarrie 5 років тому +3

    "Raspberry Baret" 😂✌💜

    • @jmoney7289
      @jmoney7289 5 років тому

      Carrie Haines my favorite part I'm going to move my dog's lips and say it when I get home so they look like they're singing it lol

  • @_puzzled
    @_puzzled 5 років тому

    LIKE! Agreement. All About Geodes and How They Are Formed is a very educational (watch many times) video.

  • @kalumarjuna80
    @kalumarjuna80 2 роки тому

    Thanks but I can't remember anything you said.... was just looking at the beauty of you!!!

  • @lordfarquar9215
    @lordfarquar9215 2 роки тому

    Love the video. Please dont bash wonderballs. They were my best friend when i had no one.

  • @vm.999
    @vm.999 Рік тому

    Liked and subscribed!

  • @Rush1017
    @Rush1017 4 роки тому

    2:40 Excuse me miss, but quartz is silica...

  • @davidkeller4232
    @davidkeller4232 3 роки тому

    Why when I broke my good open it looked like it had a good start amd then like died and kinda weird rusty like bands with empty space between the bands

  • @Philippine_Navyist16
    @Philippine_Navyist16 3 роки тому

    I seen a geode but its small but nice and thats how it forms. Thx for the info

  • @IronDragon1337
    @IronDragon1337 9 місяців тому

    2:34 quartz and silica are the same thing.

  • @crystalclearvieques
    @crystalclearvieques 4 роки тому

    When I was younger, I bought a geode with black crystals inside. What would that be? Thank you!

    • @truvonne
      @truvonne 3 роки тому

      Maybe Hematite

  • @userwl2850
    @userwl2850 4 роки тому +2

    Her top fits perfectly.

    • @deomsh
      @deomsh 3 роки тому

      Its just a video about rocks dude come on

  • @ipekkomurcu
    @ipekkomurcu 4 роки тому

    It' fascinating!!

  • @johnnieabney2560
    @johnnieabney2560 Рік тому

    Have some of these

  • @liliu6090
    @liliu6090 6 років тому +1

    When I was 7, I cracked open a rock and found a geode, but....I didn't know you could sell them and get at least $100(it was big)

  • @taracraig6206
    @taracraig6206 2 роки тому

    Wow! That is cool.

  • @applepen7727
    @applepen7727 6 років тому +12

    This tell you how hard a geode is....
    A STONE SLAB BROKE WHEN DROPED ON IT!!!!!!!!!

  • @fernandoazeredo1388
    @fernandoazeredo1388 Рік тому +1

    the background music lowkey slaps

  • @pearltears8039
    @pearltears8039 4 роки тому +1

    If they take millions of years to form then how old does that make the rocks their find in?????

  • @dr.evrimkaradag3317
    @dr.evrimkaradag3317 4 роки тому +2

    alternative title: How mini-kindergartens are formed

  • @Funniestofallkryo
    @Funniestofallkryo 4 роки тому +2

    *me over here with a mineral that has other mineral stuck together in one in my right hand as i watch*

  • @alexanderzangal4125
    @alexanderzangal4125 6 років тому +1

    Please make a video on alexandrite Or blue amber Or Maybe calcopyrite Plz ^-^

  • @winnieplayz600
    @winnieplayz600 5 років тому +1

    When your parents say leave your ipad youtube won’t teach you anything show them this vid

  • @dysfunctional_vet
    @dysfunctional_vet 4 роки тому +1

    in iraq i found a geode the size of a basket ball, i spent several hours trying to break it open without shooting it, or doing something that would draw attention to what i was doing. i could lift it and hold it with one hand, it was about 30 pounds, still don't know what was in it.

    • @kfl611
      @kfl611 3 роки тому

      You should see if some one can cut it in half for you, with a saw. Then polish the cut ends, if it is that type of geode.

    • @dysfunctional_vet
      @dysfunctional_vet 3 роки тому

      @@kfl611 it is still out there in the desert, it is near Arar, Saudi Arabia, that whole area is rich with geodes

    • @kfl611
      @kfl611 3 роки тому

      @@dysfunctional_vet I always thought geodes were like a piece of magic. So ugly and plane on the outside and so beautiful and magical on the inside.

  • @mattsallyp2435
    @mattsallyp2435 2 роки тому +1

    i like your channel.
    👼

  • @markvincentcocjin
    @markvincentcocjin 4 роки тому

    I misread the title and was expecting to see a video of how a particular Pokemon was made.

  • @AlottaBoulchit
    @AlottaBoulchit 6 років тому

    It would have been cool if you could have told us ways to spot geodes in the wild!

    • @petro062
      @petro062 6 років тому

      The just look like a ball or a rock egg. Once you start finding them you get to recognize the way the outer surface looks. Take a hammer with you and always where glasses when you hit a rock.

  • @dannys6957
    @dannys6957 3 роки тому

    Ya'll need to fire your audio-editor, or at least tell them to tone the music track down.

  • @karareagle5786
    @karareagle5786 2 роки тому

    I found a rock that didn't seem like a geode because the whole inside was grown solid but when I smacked it open with a hammer all this shiny citrine came out what would it have been

  • @bribarius5197
    @bribarius5197 6 років тому +4

    i was formed like a geode. It was really uncomfortable

  • @TheMinorsRap
    @TheMinorsRap 4 роки тому +2

    I HATE how so many people who make informative videos standing in front of a green screen try to be "funny" and little jokes in the video.
    I just want a fucking professional informative video AND NOTHING ELSE.

  • @FlushingStatic
    @FlushingStatic Рік тому

    I wonder what stones are found in the core of the earth