Geology 4 (Minerals)
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- เผยแพร่เมื่อ 5 มิ.ย. 2024
- Glad to have you studying with me! I have more content in the works and I hope you'll enjoy it. For those that are interested, the best textbook out there is this one: amzn.to/47VNed8. However, it's a little old now (two of the authors have passed away) and if you prefer a newer textbook, I would recommend this one: amzn.to/45UFDcR
For other physical geology lectures: • Introduction to Geology
This lecture video covers the main properties and crystal structures of most minerals in earth's crust. It's been arranged for anyone who wants a deeper knowledge of minerals and geology. I hope you enjoy it! Closed captioned.
I'm taking geology online right now and theres no lecutres, just readings and i really appreciate how detailed this is
I'm a retiree who first discovered geology during my junior year of college in 1980. I was fascinated by the field then and is still fascinated by it now, esp. with all the new discoveries. These lectures are presented so clearly and with so much enthusiasm! They bring back some very fond memories. Thank you.
Thank you!
This guy speaks on my level. I’m only a chemical engineer, but I love watching these geological presentations from my man cave. Thank you.
After (binge) watching the series so far, I must conclude that this is the best and most in depth introduction to geology I have come across. The structure is brilliant actually, giving a great insight into the processes from the very start which makes it so much easier to understand and reproduce for practical purposes.
Really enjoyable.
Thank you for posting this series. It's still expanding minds years on from its creation and from continents away! Thanks for the teaching!
Glad you enjoy it!
Thank you! I am thrilled to find these lectures. Geology class at home, Finally!
Glad you like them!
Been binge watching from 1 to here on 150% speed because I am impatient. Very interesting stuff, very happy you have put this out here for anyone to watch and learn. Thank you!
Thrilled to have you studying with me! I have more lectures coming and several "updated" (time to replace some old ones) lectures as well. Cheers!
Fascinating lectures! Thank you all for your amazing knowledge and willingness to teach us!
Great presentation. Flows well. Wish my instructors were this good. Rocks Rule !
Thanks for your appreciation!
Absolutely love this video! Extremely educational, and would even be easy for middle and high school students to understand. exceptional video!! I can't wait to watch your other videos! Definitely worth a 100 thumbs up!!
I really appreciate the compliment!
Perfect explanation and visuals, highly rate
Mind blown! I'm definitely going to watch part 3 and 4 again to let it sink in further. This is the first time I'm motivated to look more into chemistry/psychics as I had no interest in it at school and did very badly in those areas.
I studied Geology and received an undergraduate degree at a Canadian University back in the 1980s. Sure wish the lectures at the time were as clearly and succinctly delivered as the ones on these videos.
Thank you for your kind comment! At some point, I will expand this series and cover some sophomore-level courses as well, such as mineralogy, maps, geomorphology, and possibly volcanology. Hopefully you will be willing to review that content as well.
Excellent Video !!! I’ve been looking for video that CLEARLY explains what this video explains. Thank you! -college mineralogy, California
Had to come back and revisit because I struggled. I'm so appreciative that you have made these videos available!
This is an excellent channel, and thank you very much for creating this video!
Thank you!
I am very happy to have found your channel. You have an amazing ability to teach and explain your subjects.
Thank you so much!
A lot to digest, but good basic discussion. Will have to view the video again and supplement it with the textbook. You are a great teacher. Thank you.
nice way of teaching,actually i'm doing my Msc but after working for 2 years in other field,it's like a good refresh of what i have learned before,...and i feel like i didn't learn anything compared to these newly graduates that are doing so well,i hope i could do as good as them after watching all the videos,thank you!!
Awesome, want to watch them all! Great job thx
Your videos are awesome sir ....really interesting.....thanks a lot.....
PART 2: I have prospected beautiful minerals at Sterling Hill Mine, the dirt recycling center and collecting dimensional stones, such as mall rock mulch which has beautiful granites with calcium or quartz veins in them, muscovite mica books and schists, granites with large schist, orthoclase, shale, slate, marble, chert, and even vesicular basalt from a road cut. I love your course.
Frank Reiser M.S.
Thank you so much for producing this a+ quality and very educational set of educational videos, I have slowly been teaching myself geology over the years and this series has been an enormous benefit to me as I continue my studies. Is it possible for the public to buy the textbook you refer to? Thank you so much and keep up the good work
Really cool cool stuff, fascinating!
This video's a gold mine.
exactly what I needed to understand thankyou
I have found a precious stone.
The video helped me alot.
Thanks to your educational and informative video.
When the Doc is discussing Mineral collecting kits - who has made their own using a Whitman's Sampler box? I must have made a dozen of these when I was a kid I had so much fun collecting rocks and minerals. Unfortunately, no internet back then - but trips to the public library to learn about the sciences. 50+ years later - I still have a couple of those kits
Legit top-tier content. At 2x the vid is clear, concise, w great visuals. Nice quote btw:)
PART 1: I got into becoming a major rock hound by first finding a good15 pounds of green aventurine while walking my dog in the cemetery. Then, walking my dog again in a dirt recycling center, I came upon a rock pile that had beautiful specimens in it, including a little citrine, amethyst and teeth quartz. That got me into studying rocks and minerals, but I realized that I was not knowledgeable enough to identify rocks and minerals. So, I studied all of geology for 7 years.
Thank you for your great informative video to uploaded, it's very helpful.
Professor is a GOAT
I am a new subscriber, but want to thank you for these fantastic lessons in geology. I have learned so much already! I can't wait to try out my new knowledge. :D
Awesome, thank you! I plan on making a lot more of these so hopefully you'll stick around to watch those too when they get released.
I loved this video learned a lot from it, thank you !!!
Glad it was helpful!
Lol dude your videos are a godsend in this remote learning time! Thanks SO much!
Glad to help!
I think this is absolutely fantastic
amazing!! thank you so much
Dude, this is soo good. Biology PhD here wanting to brush up on geology. You really explain this very well!
Thank you so much sir! You explained it very well. It helped me in my geol 100 lessons (including your other videos).
Glad I could help!
excellent and well organized presentation for us having less knowledge of geology
Thank you for your appreciation!
Awesome lesson and teaching!
Glad you liked it!
I need to understand everything ,especially when English is not my mother language .
Beautiful intelligence .
We are made from beauty intelligence.
You are beauty mind.
Mother nature know precisely how to mix and make 😱 👍
Indeed it does!
Hello these are wonderful lectures. I really love the geologic process and these lectures have made it very understandable to my poor older brain. Is it possable to get the homework for further work? I have never asked for homework in my very long life lol!
You are a gifted teacher
Thank you so much!
You should give a short explanation as per the Fe3O4 part that got edited out. Ive studied this in terms of Meteorites. Neat stuff.
you are my geology hero!
Just discovered your series. Love the lessons.
On this Geology (4) lesson you list the breakdown of earth composition and Iron is listed as 5%
However, every time I see a 3D cutout view of the Earth the solid Iron core is shown as this huge ball and then it is wrapped with a liquid Iron core (even bigger) altogether hardly 5% and more like 20%
If were to draw those layers in the correct proportion, what would the view look like?
What a fascinating subject! Thanks for posting this wonderful class on Geology. Gold, I was told it cannot be formed here on earth. I was told it can only come from a star going supernova and a meteor carrying it from that supernova coming here to earth. But in your video, it looks like it grows on quartz? I will believe a geologist over an astronomer. Hope you can answer.
This is very helpful especially since my teachers doesnt know how to teach and we have class at home
I'm glad it was useful to you!
So many names. Is there a good family tree type of diagram to show the classifications of minerals?
OK I know this is way off subject, but I just found your channel and I have a question, if you would indulge me a little it would be appreciated.
Zircon magnetics, have you heard of this and the Baja/ BC theory, if so what are you thoughts on it, has it been proven or still a theory?
And I do enjoy the videos I've seen so far, the format, and content, thank you
Want to bring to your attention that at 14:50 you meant to say that quartz is 2.7 times heavier than water.
Great lecture. Thanks for sharing.
Excellent presentation!
Thank you! Cheers!
Great, just great =D
Interesting AF!
Thank you very much
Great Lecture. Can you share the presentations?
Old saying Iron sharpens Iron, presenting all this material to us, gives a chance that we get a little sharper too ! thank-you more good understandably talks of geology luv it luv some rare earth!
38:42 it's means 33.33% for each I assume. If i get how to use that chart correctly, each axis uses the previous one anticlockwise to get the percentage.
Good to know u can eat anything up to 4 Mohs.
Btw with pumice, vermiculite and perlite seems that its just not measured right cause it traps so much air that gets counted as its volume. And also contributes to the floating.
Perlite has some very interesting properties, that’s for sure.
this is a pretty good channel...
What is the text book mentioned in the lectures and comments?
For the composition of the earth you were talking about the crust and not the whole earth, but you didn't precise it
And if I'm not mistaken put's the Iron at ~30%, the Oxygen at ~30% and the Silicon at ~15%
Yes, I was referring to the composition of the average crustal rocks (thanks for pointing that out that ambiguity, I'll be more precise in future versions of this video). The bulk ("whole") composition of Earth is a bit harder to figure out because we need to make some assumptions from meteorites, seismic waves, and geochemical models. Here's a good paper on our current thinking on bulk Earth composition.
quake.mit.edu/hilstgroup/CoreMantle/EarthCompo.pdf
This was a bit of a leap for me from the previous lectures. Struggling a bit with this. Gone back to you tube for lots of clips and talks on chemistry etc. Would like another lecture for total chemistry beginner. Having said that will carry on with other lectures.
What dictates the formation patterns on metaloids?
This stuff can Heal you.
☕Sip. Thanks for the digestible presentation.
My pleasure!
I'd be quite interested in doing some chemistry and modify minerals to get some interesting properties and colors, I wonder whether people do this, or are simple books to get started
Just a minor detail but in 49:55 (OH)2 is not water, but hydroxide, i.e what makes compounds basic.
Very useful
Hello,
I really enjoy your channel. I am interested in geology and wonder do you have the PowerPoint presentation available or could you recommend reading material if I was to undertake an undergraduate degree.
Which topic specifically are you interested in reading about most?
@@EarthandSpaceSciencesX Rock identification and how to determine which type. Furthermore, if you had a recommendation of geology books I would greatly appreciate it.
Kind regards from Ireland.
@@owenboyd5674 the main book used to teach geologists Rocks and Minerals for decades can be found here: a.co/d/0wEzDyx
For a great introductory textbook, I would recommend the following: a.co/d/gJSW9aG
Hope this helps!
Would you mind sharing presentations? It would be excellent for the audience. Kind regards...
Thank you sir
4:58 the orange/brown - that's citrine...awesome presentation....still don't know what book is part of the lectures...
Thank you
Thankya. I feel smarter already, always wanted to know.
Am I mistaken or when he goes over the colors of minerals and points out that there are orange minerals, isn’t that an orange citrine Quartz Crystal piece on the upper right that he labels as a stained piece of a type of rose quartz?
Please elaborate on Miller and Weiss parametric and how to get the faces and structure of crystals. Thanks
The best I can do is put down a quick link where that is answered (this topic goes beyond the scope of my lecture series but is included in a good, semester-long mineralogy class). Try this...
www.tulane.edu/~sanelson/eens211/axial_ratios_paramaters_miller_indices.htm
Cheers Big bro
I am a middle aged man and never saw euhedral calcite as rock mulch on someone's property. My neighbor had it. She gave me permission, so I collected a lot of it.
Do we know if Enstite is forming in outter space (asteroids and such) or does it require a full planet with an active geology like Earth?
I honestly don't have the answer for that. It's a very good question though.
Is there any way I could get a copy of these notes?
Sorry, I don't post them publicly. At some point in the future that may happen, but as of now I don't provide them.
What are streak plate’s made of? Would water purification (for human consumption) be aided by silicate minerals? If so, light or dark silicates?
The unglazed back side of a white porcelain tile is used as a streak plate.
Lesson #4 done and done! This lesson was also particularly tough for me to get through because of the chemistry bit.
I don't even know what you gonna be doin
@@helbitkelbit1790 I'm sorry, but I didn't understand your comment.
@@AGDinCA Geology is a field full of chemistry, if you want to be a Geologist, you might also want to take chemistry lessons!!
GREAT DAY...PICK UP SOME ... OOOOOWWWWEEE LOOKING GOOD IN MY BATHROOM THANKS
Most Geologists are really down to earth.
We try. Lol
Thanks
Excellent video... can u please make a video on Depositional Environment in view of hydrocarbon formation and deposition.
To do that topic justice would require a series of lectures. While I would enjoy doing it (it's really interesting stuff!), I'm not sure I could get to it anytime soon. Right now we are producing an Environmental Science series, and then possibly will do a series on Forensic Geology and then another series on Historical Geology. Sophomore/junior-level lectures are in the plans, but not for a while.
@@EarthandSpaceSciencesX ok thats great.. However depositional environments are really very important and please give it a try whenever possible.. Many thanks
I'm sorry, in a book that I'm reading "Essentials of Geology" 5th edition, by Marshak, it says that 35% of the Earth's mass is iron, and barely 15% is silicon. Is your chart during min 20:00 only referring to what's visible on the surface?
Marshak is referring to the bulk mass of all of Earth. My numbers are in reference the lithosphere…the materials we can see and touch.
@@EarthandSpaceSciencesX Thank you so much for the clarification
Hi, Do Geologists sometimes need the services of a Geochemist to properly identify the Rock or Mineral Sample that has been found?
FOR INSTANCE:: Let's say that there are two Minerals with each looking very similar in their physical appearance and each having the same 3 Chemical Elements that make up each Mineral but in different proportions by Percentages (%}.
One Mineral Sample may have the Percentage Ratios of 60-20-20 and the other may have the Percentages of 40-30-30, again with the same Chemical Elements in different proportions.
I would "assume," if I may,, with that much variation in the Percentages of the Elements, there would "most likely" be enough Physical Appearance variations to properly identify the two Mineral Samples by sight by the Geologist.
If they could NOT be readily identified by the Geologist, would that require the Samples to be Examined & Analyzed by by a Geochemist? ~TIA, Bruce~
Good question. Geologists, for the very reasons you just cited, receive extensive geochemistry training during their undergraduate years so that, in a sense, they can be their own geochemist when needed. A common example of what you are bringing up is plagioclase, being a solid-solution, can have very different chemistries depending on the condition which formed the mineral. Geologists learn how to easily measure the chemical composition of plagioclase during their sophomore or junior years using an optical microscope. Same for most of the other common rock-forming minerals.
@@EarthandSpaceSciencesX --- THANK YOU Greatly Sir.
Cool video
Thanks
I am guessing the relative abundance of elements in the earth is with respect to mass rather than relative number of moles. Mass vs. moles would give different ratios of elements. The relative abundance of hydrogen, sodium and carbon, in number of atoms, is going to be much higher than their contribution to total mass because they are light elements.
Yes, it is weight percentage.
you described quartz as having multiple colors, but isn't the orange/red color quartz a citrine?
Yes, we could call it a citrine variety of quartz.
How I get this slide. Mr
in georgia there is a mica member that looks like gold.
I want request you
To give me the ppt for you lessons
Phew, that one got a bit dense. The slide show content really helped digest it though.
Indeed! I'll probably re-record the video in the future and break it up into several smaller lectures....
(OH)2, ie 2 oxygens and 2 hydrogens, is not water. It's dihydroxide (as in the hydroxide group of sodium hydroxide (NaOH)). Thanks for the video.
would you be willing to Id a couple of rocks I have? Both Black. suspects are both hard. one might be glass and the other a sample ? from Africa neither are magnetic.Both especially one is very heavy
what is namada??
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