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From: devildogmre
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  • @Chokingonlifesavers if you know what a clastic sedimentary rock is in 8th grade you should pursue it if you are interested.

  • thank you ^^

  • I like to think of rocks as a preserved solid form of time. Rocks are fascinating to me because they capture the Earth’s geological past. I like to observe all the different features on a rock and collect more and more. What I like most about a rock is how it looks and feels in my hand, because it gives you an interesting learning experience. The different shapes, textures, and physical features of rocks just interests me. I sometimes wish to collect every single rock on Earth!

  • Dude.... the sound effects and stuff were just plain WEIRD and unnecessary... put CALM GENTLE music next time

  • Just saying... Just because it is phaneritic doesn't mean it's intrusive, same with aphanitic and extrusive. Phaneritic is a texture, intursive is where it crystalized. I have seen phaneritic extrusive rocks, and I have seen intrusive aphanitic rocks. Just putting that out there.

  • I have a lab midterm today and was having trouble recalling the information without actually SEEING the rocks. This video helped, thanks

  • i hate it when this video loads too slow.

  • @enchonakatyperry can not you wait ??

  • @Raxidz hmm,to be honest, not really. coz i need it urgent for my school project :)

  • i used to think obsidian only existed in minecraft, thanks for the info

  • Grantie and granite porphyry are strikingly similiar, excext porphyry, apparently, contains more feldspar, and of course, contains the porphyric spores thoughout its structure.

  • Holy shit!! Rocks Rock. \m/

  • I am a hessian and a geology student!

    Hail metal geologists!

  • it was harder to tell some of the igneous apart because of the video quality, but it helped allot. thanks!

  • Hi all, just trying to spread the word about a new community site we're putting together based around our planet - earth-forums (dot) com. We'd love for you to take a look :)

  • This video helped

    Thanks

  • What is clastic and non-clastic in layman's terms?

  • i used to think shale was an igneous rock, but thanks to you guys i know its a clastic sedimentery:D i want to become a geologist when i grow up(im only in the 8th grade) do you think theres any chance for me?

  • @Chokingonlifesavers

    Thanks for the great comment. I really hope you're able to pursue the things you love in life! Go for it.

  • @devildogmre :D

  • @Chokingonlifesavers It's also a very, very well paying career :)

  • @CelerySunrise are you a geologist?

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  • I may be starting a combined honours degree in september half zoology and half geology. I have almost zero knowledge of rocks and minerals although i'm good with fossils. Is it ok to start from scratch in september or should I be preparing myself with home study?

  • co sa azy

  • this is really helpful - thank you! :)

  • I wished i saw this vid before i took my test ;[ great job though :]

  • This is a very cool vid. I teach physical geology labs at SHSU and all the rocks yall showed are basically everything that we cover. I even think I might recommend this vid to a few of my students when we cover the rock types lol.

  • @geonasa07

    Wow!! That's awesome. I'm really pleased you think so highly of the video. I'm pursuing a teaching career myself now (TESL) and my wife already has her Masters in Early Childhood. If it helps your students, definitely! I made this video originally to help out my fellow classmates.

  • @devildogmre: I would have to add a little bit more to the caption though in showing my students in terms of identifying. Although you get the basic point across, but nothing is better than actually having a sample in you hand and visually seeing it for yourself because not all sample of a particular rock are the same :)

  • @geonasa07

    Agree. Sounds like a plan. Let me know if you end up using it!

  • @devildogmre help iv dug up a very heavy what appears to be a rock and cant see it being an old peice of iron because of the shape its magnetic extremely heavy was realy rusty iv bashed red rust of and wire brushed it it is bluish black it must weigh 3 pounds its got like thumb prints but not smooth like a meteorite apparently is any suggestions hope its not just old peice of iron

  • @doh1959 you should totally post a picture of this rock i can probably help you identify it to the best of my ability. <3 geology

  • i mean this comment directed @devildogmre about what he thinks maybe a meteorite.

  • @madoriaco hey bud thanks for offer i had it analysed by a metal spectrometer it turned out to be 98 percent steel was a slag geez no wonder about 95 percent of rocks submitted turn out to be meteor wrongs

  • @doh1959 that's too bad i was so excited for you hoping it was a meteorite... wouldn't that be so cool to find?

  • @madoriaco yea iv got the bug now gotta find one

  • @devildogmre forgot to tell you it found in midlands england

  • @devildogmre no bluish grey better colour description almost like gunmetal colour

  • @geonasa07 Igeneous rocks!!!!

  • @doughauf what about them?

  • @doughauf Lost the connection. I always got the three types mixed up in class. There seemed to be endless combinations. What is the best way to identify them.

    Doug Hauf

  • what song is in the outro ??? <33

  • @jclark741

    "Distance" by Soilwork, from their "Stabbing the Drama" album.

    Here's a sample of all the chorus lines from the album:

    youtube (dot) com/watch?v=Ni7mHrL3W3w

  • Good video! Rocks are our oldest things on the planet, and tell so much of the past. The beautiful igneous Rocks around Lake Victoria in Tanzania record the ancient history of the lake itself. I've uploaded a short video of some of them on my youtube site, under Speak Swahili, Dammit.

  • @speakswahilidammit

    They really are beautiful, yes! My wife and I love looking at them on hikes. Glad you enjoyed the video.

  • @devildogmre Cool, dude. Where do you live? We live in Falmouth, Cornwall (UK).

  • @speakswahilidammit

    We're in Johnson City, Tennessee (USA). Lots of good hiking around here and out in the rural areas of Tennessee and North Carolina.

  • wow thats awesome:D geology n metal <3

  • @Aradebil

    Hope it helps the learning process. Thanks!

  • Good.... This is very useful for students of geology.

  • @gletser88

    I really appreciate that. I get a kick out of instructing!

  • This video proves Geology is METAL

  • @bassplayerpet

    It definitely rocks. Waaah-waaah....

  • this is good for school

  • Just wondering if anyone could identify a rock for me it's a blood red colour with a strip of cloudy quarts and it's glossy I found in between two layers of soil the top was red volcanic soil and the bottom was sand

  • Most helpful video out there!

  • @kayblinky

    Thanks! Check out my other vids, too. Have a good one!

  • Yeah, I was originally doing this video just to help other people in my Geo class at ETSU. I'm glad other people have been able to use it, though I do recognize that my descriptions are pretty generic when applied in a broader setting. Thanks for watching!

  • some of the characteristics you list are only specific to the samples you are looking at... but good job on most!!!

  • also classification of metaconglomerates should make no mention of crystals... they are metamorphosed conglomerate(sedimentary) rocks... you should focus on the deformation of the clasts and the hardness of the recrystallized cement.

  • Great vid on rocks devildogmre. Would you be able to identify a rock i have had for many yrs? Seems like no one can. I am anxious to know what it is. It is my favortie rock. Thanks.

  • meta-quartzite, you douche. lots of love, kate

  • very fantastic :D

  • @ninjastick123

    You should try the "Rockhounding" series for locations and I used the Smithsonian Handbook for Rocks and Minerals in my Physical Geo class.

    My handle, devildogmre, is a reference to my days as an active duty Marine. An MRE is a "Meal-Ready to Eat", or prepackaged meal. Also, as a subscriber pointed out to me once, "devildog" backwards is "god lived", which I thought was clever for him to point out, but unintentional on my part.

  • Great video!

  • @cevejaaahh

    I appreciate it. Thanks.

  • "What's the difference between chert and dolostone?" "one breaks like glass" :D

    how about one is made of silica, and the other calcium carbonate, one effervesces with HCl, and the other has conchoidal fracture

    I like the descriptor for sandstone, "sandy looking". :D

  • sir,this was a very good rock video.Learned imp rocks in  a very simple way

  • @prakashjha11

    Great. Hope you did well!

  • Does that "schist" on 5:35 have "mica" (with muscovite and/or biotite) and should it be called then MicaSchist ?

  • @minimalizam006 it does yes, palona schist

  • wow i have never heard of scoria, ive heard of scoriaceous basalt, unless you are just calling it scoria for short. but if that is the case then you might want to mention that somewhere

  • @darkfairyashley THIS IS THE RECORD OF THE FIRST MAN-MADE EARTHQUAKE.

    I am not wrong. I challenge you all. With this so many lies fall.

    Man-Made earthquakes...

    "The Earthquakes at Yakutat Bay, Alaska, in September, 1899."

  • @darkfairyashley scoria is essentially the term for highly vesiculated basalt where as pumice is the felsic equivalent so really the term scoriaceous basalt is overkill because scoria implies basalt.

  • gah, sorry i shouldve finished watching the vid. although your oolitic limestone is alot different than my specimen... hmmm

  • i have a wonderful collection of rocks and minerals. just a tip. slate is metamorphic.

  • @NewDarkAges13 American Standard Version - Here is wisdom. He that hath understanding, let him count the number of the beast; for it is the number of a man: and his number is Six hundred and sixty and six.

  • @insightllc Ok? What was the point in that? Buzz off.

  • @NewDarkAges13 I AM A PROPHET. I WILL give you prove this the biggest Geological discovery in 111 years right here with my post. SHUT YOUR MOUTH. I bring the truth from GOD. HOW LONG TO EARTHQUAKES LAST?

    ON AVERAGE AND TO THE EXTREME? ANSWER ME OR YOU HAVE THE MARK!

  • @NewDarkAges13

    GEOLOGISTS... HOW LONG TILL AN EARTHQUAKE IS OVER?

    AVERAGE AND EXTREME?

  • @insightllc you can't really predict when and how long it lasts

  • @NewDarkAges13 I REALIZE THAT BUT WHAT IS AVERAGE AND RECORD?

  • @NewDarkAges13 INCLUDING FOR AND AFTER SHOCKS?

  • @insightllc Everything. micro-quakes to big ones.

  • @NewDarkAges13 I DON'T WAN'T TO HEAR, "THEY NEVER STOP" BUT YES... THE RECORD TIME FOR A MAJOR INCLUDING ALL AFTER, FORE & MINORS THAT PERTAIN TO IT AS ONE.

  • @insightllc what do you mean?

  • @NewDarkAges13 Well, it depends. Whether you are talking about California in general, or another place in the globe. check USGS.

  • wat just happened

  • Where are most of these rocks found. At the surface?

  • Comment removed

  • That's great(=

  • Cheat off of you! >.>

  • Lol wtf? Gee thanks for not letting me cheat on you...I have an assignment...and its making a rock video!....gay.

  • It's not a bad vid, but ideally more points of differentiation (such as grain size, hardness, mode of minerals, etc) could have been used as many rocks can appear very similar. Some additional context to the rocks would also be helpful eg. marble = metamorphosed limestone...Basalt, Andesite and Rhyolite (in order of silica content) are all extrusive/volcanic and Gabbro, Diorite and Granite are the chemical equivalents intrusive/plutonic rocks. These things really do help students, trust me. :-)

  • Thanks for the advice.

  • some of your igneous rocks were volcanic, and rocks shouldn't be generalized that much if you're going past rocks for jocks. liked the foliated zebra rock. Anyways, geology hard ass shit to get right and this video is pretty damn good from a intro geo class.

  • I couldn't bear to watch these poor little rocks being exposed to the light of day.

  • i have a geology rock identification test tomorrow, you're my hero, thanks a lot dude

  • razgandeanu,

    No problem. Do good, ok? Thanks!

    Matt

  • @razgandeanu

    Young's Literal Translation - Here is the wisdom! He who is having the understanding, let him count the number of the beast, for the number of a man it is, and its number

    is six hundred and sixty six.

  • @razgandeanu

    Young's Literal Translation - Here is the wisdom! He who is having the understanding, let him count the number of the beast, for the number of a man it is, and its number

    is six hundred and sixty six.

  • great vid, i had a facebook group with all these rocks with pictures and descriptions, but it got deleted so i thought i was going to have to wing it on the final but i luckily found this last minute

  • Glad I could help. Good luck during finals!

  • the names are right but most other info is misleading

  • thanks!! this video helps a lot=)

  • panamint valley  if you gotta have rocks.

    really!! gems too

  • Yay! Rocks!

  • mean, metalocalipse and rocks. some of my favourite things'

  • Glad you enjoyed it! I enjoyed making it.

  • thanks so much!!! im doing a rock collection for school and its due in 2 days and i need to identify 20 rocks, u helpd a lot, thx

  • I made it to help out a class of 30.

    So far it's helped over 30,000.

    I'm really glad I was able to make something that could help you. Work hard in school. :D

  • are are our

  • is this Tilsons class at ETSU???

  • Sure is.

  • omg soilwork.

    also thanks a bunch, this should help me a significant amount.

  • thx just what i need for me rock project

  • Fairly basic, Only the folk classification was used to identifying (some) of the carbonate seds. What about Dunham? Hope this was just highschool introductory geoscience not university.

    P.S. i'm currently 3rd year geoscience university student in Australia.

  • @clipzed thats a good point. also, it would have been nice to incluse the protolith for the metamorphic rocks as thats pretty essential in terms of understanding the rock. oh well. also in 3rd year in aus. monash ftw

  • @metfan89 Hehe, i'm not 3rd year any more! currently half way through my honours. My project is for Santos (i also work for Santos). It's based in the Surat basin looking at hydrocarbon potential in structurally related caps. I did vacation work with someone from Monash, they were extremely jealous that we learnt much more at QUT. Hope all is well!

  • Thank you very much!

  • cool

  • thankk youu sooo muchhh greatttt andd veryy helpfullllll!!!!!!! :] <3 :DDDDDDDDDD

  • Thanks for posting. I used this during my geology of Florida course

  • Thank you for posting this. What I think would be MOST helpful is if someone could explain why the rocks are given the names they have. Like many parts on the human body, for example, the Atlas which is the first top part of the spine which holds the head derives its name from Atlas who carries the Earth on his shoulders. Do rocks even have such meaning behind their names? I cant find ANYTHING on the subject.

  • Comment removed

  • That is so awesome, thank you for this info, how did you come to know it? Do you know of a website perhaps?

    Thanks again.

  • Comment removed

  • @Subfightr mineral nomenclature isn't as highly rationalized as say binomial nomenclature (of living organisms). Often mineral names will have English or Latin origins as roots to describe the prominent distinguishing characteristics of each mineral. Olivine is green, like olives, an obvious one. Albite, with Latin root albus meaning white, has a white color. Hematite, root hema, meaning blood, which could refer to its blood color, or its iron oxide content similar to blood. Most likely both

  • @irishblood6355

    Thanks for the Geology Etymology. Always nice to bring in stuff like that to the overall lesson!

  • Thank you, this is going to help me very very much!

  • that was cool .i will mak your vidio in my broject . thx

  • i need to watch this but i know its going to be the most boring 7 mins of my life. gotta watch it to pass this exam coming up lol i needed to take any science class and i chose the most boring physical geology

  • I liked it I thought it was very basic, and to-the-point, which is what students need. I'll definitely steer the visually learning students here for help with this lab.

  • I'm honored that you would use this in your classroom.

    Thank you!

  • i learned this at school!

  • the most boring subjected ever invented haha

  • Comment removed

  • Thank you so much!!

    I study geology and have not passed this subject.

    It wil help me to remember how they seem like xD

  • I studied rocks and minerals in geography classes million years ago and I remember using the terms like acidic and basaltic to describe the chemical composition. I see here the word such as aphanitic, is it a new way of classifying nowadays?

  • Aphanitic vs. phaneritic = texture. Aphanitic = fine-grained, phaneritic = coarse-grained. Basaltic (mafic) vs. granitic (felsic, acidic) = chemistry. :)

  • it's not informative at all, as i see it will suit only for first-year students. we had the same, but even we had more types of roks. for example - sienith, more kinds of granites, different nepheline sienith...

  • Indeed. It was my first semester of Physical Geology when I made this and a first year class is exactly who it is geared towards.

    Some other viewers have commented that they use this video as reference for their classes and professions, which is nice.

    Thanks for watching.

  • Nepheline syenite is way more advanced... Best for folks to get the basics down first, then quibble about the details.

  • How can you tell right off that a rock is sedimentary or igneous or metamorphic...Any help is apprecaited thanks in advance

  • Textures will differ.

  • what is the difference between scoria and pumice ?

  • Scoria is usually basaltic, dark in color, and has large vesicles (holes),

    Pumice is usually felsic (sialic), light in color, has very small vesicles and it floats in water

  • You can get black pumice though - its awesome :D

    Scoria includes things like volcanic bombs, and the heavier parts of tephra.

  • Don't know if you still need this bit of info, but, the difference between scoria & pumice:

    Pumice is sometimes called volcanic "froth." It's full of air, but glassy, i.e. it has no mineral development.

    Scoria is volcanic rock with >50% air holes (vesicles), aphanitic in texture (minerals cannot be seen without magnification), but with mineral development.

    Glassy texture results from fast cooling and no development of crystals/minerals.

    Vesicles are a function of trapped gases.

  • lol ~~ geologist

  • rly nice! thx

  • Very very good! Thanks a lot mate!

  • very nice :)

  • The specimen names in writing is very helpful.

  • @specialkcheer I am a prophet of the bible.

    Have an ear... the hour is here... like a thief in the night.

    The number is perfect. The signature of God.

    I was born 75 years to the day after the 1899 Cape Yakataga earthquakes caused by Nikola Tesla or I would have never been told. My social security# is six hundred and sixty-six. My Federal E.I.N. ends 666. I have counted the number of the beast and with insight I calculate the number of his name as a googol. 10^100. I bring proof from God.

  • Thanks so much for the video. I am taking the class this summer I suppose you were taking. Very helpful!

  • Hey Guys,

    That was fun!

    Thanks!

  • Is this for Geology 12? I remember this in highschool, the box and all. I did a video but I never edited (youtube wasn't as popular). I think you guys did a great job with the identification. The intro was funny and fresh. I practice geology on my spare time and this video is super useful.

  • thank you so much for this video ... it helped me a lot ... i will watch it until i memorize averything in order to pass the regents .

  • The pictures of rocks are excellent but accompanying thin sections would be helpful. The explanations are mediocre and relatively uninformative. In any event the attempt to be instructive is gratifying to anyone interested in the earth sciences

  • I have two Geology exams this afternoon, this has helped me catch up on what I missed, thanks!

  • You are very welcome! Good luck on Finals!