I used to mountaineer...looking at the rock, sometimes very very closely, was one of the side pleasures of the game. Worked underground in coalmining, saw a lot of rock, sometimes a hellovalot more than I wanted to. It is a fascinating hobby and can supply a lot of information about the immediate locality... Great stuff...great wee video...
It has been a long time since I studied geology in college. I very much enjoyed the revisiting of the basics of the study of geology. Thank you very much.
I rockhound on the mountain my cabin is on in cascade Idaho and the rocks that don’t seem to belong are usually really old looking green orbicular rhyolite… basalt with tons of holes. Some stuff that looks like coral fossils. some stuff that looks like ocean jasper… but maybe gabbro? Some monazite. One piece of nephrite jade. One tiny piece of obsidian that’s grainy on the outside. One really really small aquamarine crystal filled pegmatite fragment.
Shist brought me here because in the cairo museum there is a shist disc. Now i know how difficult it must be to make that disc out of shist i am pretty much off the fence there must have been advanced tools in ancient history.
Yeah ive had enough of these schists too! The schist is everywhere! Its confusing having so much schist around im up to my knees in the schist! Im on the Ohio river so ..✌️🤙
I’ve never heard of schist forming from granite. Granite becomes gneiss under pressure and temperature. It is usually mudstones that change into shale, then slate,, then schist…This is what I am aware of anyhow!
That's what I love about geology. A young boy once said to me that they were like "mini time machines." He was right. If you know what they are and how they form, it's like going back in time hundreds of millions of years.
I found some weird rocks, in Landers, CA, where I visited last month. I had uploaded the video, two kinds of rocks are shown in it. First rocks had weird protrusions (nubs?) like the ones found in so called megalithic walls of Inca and Egypt. Second rock type, definitely volcanic, had a string of harder rocks arranged in linear fashion. Some had CROSS shape... linear was weird enough, but cross arrangement? How is that possible? Have you seen this kind of rock formation? What are they called? Please take a look, I thought they were andesites, but I could be wrong. Thanks,
Very strange. Definitely igneous rocks. Uneven mixing of the chemicals in the magma creates slight differences in hardness in the rock as the magma cools. Over time, the weaker areas weather and erode more than the harder areas. So my guess is that what looks like inclusions is probably just the result of uneven weathering.
When I clicked on this I thought...BOOORRRIINNNGGG but I stayed and was glad I did. It's actually way more interesting than I anticipated. Thanks for making me not a dumb dumb 👍
So glad this vid taught you something that will be useful to you, So many Video's teach you thing's ( which just take up Brain Space) no cranial flatulence here...lol bah ha ha ha ha.
@@akatripclaymore.9679 I'm not sure if it's 'useful' information for me, don't know if identifying rocks is something I need to know, I got this far in life without knowing 😆maybe a question might pop up on a quiz night 😂 but it's definitely interesting information.
Gold is not associated with mica, so the amount of mica in the schist is probably not relevant. Gold is often found with quartz, so it might be possible to find some in schist with a high quartz content. I'm assuming, though, that the process of turning the original granite into schist doesn't remove or alter the gold somehow. I'm not a metamorphic geologist, so I don't know for sure, but I don't think that's likely.
@@argonaught5666 Thanks for clarifying. I am correct in assuming that the quartz veins would have formed later, after the schist had already metamorphosed?
@@gsimonel I'm no geologist but yes. I assume the schist was metamorphosed and then a cooling off period. Then an activation of the intrusive broke it and solution worked through those channels and formed gold bearing quartz veins. Keep in mind, geology includes a lot of conjecture. For instance, the great Boulder batholith in Montana is presumed to have four major events of activity. In the last one the interior was pretty solidified and not much happened there. However, the margins were thinner and that is where things broke up allowing for the intrusion, formation of pigmatite dikes. In these all kinds of rare earths and crystals formed. So I would imagine that these same processes happened in the schist and gniess bodies. Rochester basin out of Twin Bridges Montana is a good example of gold veins in schist. The geologic schools visit it often because it is known as basement rock, some of the oldest on earth.
Tomha Bokita: If you could describe the appearance of the stone in a little more detail, used in a much better chance of narrowing down the type of stone that you have. You could also use comparisons to describe the appearance and feel. It might also help to consider the place where you found them in nature. For example it could have a homogenous, grainy, porous, flat, glossy, metallic or nearly polished appearance in the places where it breaks; Perhaps there are layers or striations in it. Perhaps it looks like it could have been wood at one time, as coal often does. You may have found it in close proximity to a type of stone that you can identify; that would help to know about. Is the stone smooth on the outside that has been exposed, or rough or flaky or translucent? That’s the sort of thing that might help narrow down the stone about which you were inquiring. You could also go to your search engine and look for images of black stones to see if you can spot one that looks like yours. The image would likely be associated with a webpage that will give you the name, if it’s not labeled. And if you live close to a college or university with a geology department, you can always check with somebody there. I hope this helps. :-)
No. I received a masters degree in geology, but that was many years ago. As someone else pointed out, schist is metamorphosed mudstone, not metamorphosed granite, as I said in the video. A professional geologist would not have made a mistake like that.
Your video just appeared on my TH-cam feed, as I'm very interested in geology. 1) Your commentary and narration is excellent. 2) The video quality is TERRIBLE. For a couple hundred dollars you can get a cell phone which produce REALLY excellent sharp video. Do us a favour and throw away the phone that produced these videos and buy a better cell phone. Almost any phone over $200 will give you wonderful results, compared to the phone you used. 3) In spite of the bad quality video, I'm going to subscribe, because your commentary is very good! But rock and mineral ID is really dependent on high quality video. 4) Please let us know WHERE you are located! Not a clue anywhere on your "About" tab. Though I guess you are on the eastern part of the USA. Maybe Pennsylvania?
I used to mountaineer...looking at the rock, sometimes very very closely, was one of the side pleasures of the game.
Worked underground in coalmining, saw a lot of rock, sometimes a hellovalot more than I wanted to.
It is a fascinating hobby and can supply a lot of information about the immediate locality...
Great stuff...great wee video...
It has been a long time since I studied geology in college. I very much enjoyed the revisiting of the basics of the study of geology. Thank you very much.
Thank you sir. I really did enjoy this brief lesson about our mother nature. Bless you.
Liked and Subscribed.
I rockhound on the mountain my cabin is on in cascade Idaho and the rocks that don’t seem to belong are usually really old looking green orbicular rhyolite… basalt with tons of holes. Some stuff that looks like coral fossils. some stuff that looks like ocean jasper… but maybe gabbro? Some monazite. One piece of nephrite jade. One tiny piece of obsidian that’s grainy on the outside. One really really small aquamarine crystal filled pegmatite fragment.
Shist brought me here because in the cairo museum there is a shist disc. Now i know how difficult it must be to make that disc out of shist i am pretty much off the fence there must have been advanced tools in ancient history.
If you found some under a church, would you be like; "HOLY SCHIST" ?
Groan . . .
@@gsimonel sorry,lol
I enjoyed the walk along in the field examination portion of the video after the classroom educational portion. 👍
Love the video Glenn! Glad to see you getting some new followers here :). I really enjoyed the bit about glacial dropstones!
very nice place to hounding rock it's beautiful place.
Yeah ive had enough of these schists too! The schist is everywhere! Its confusing having so much schist around im up to my knees in the schist! Im on the Ohio river so ..✌️🤙
we have a sample of schist with mica. Thank you we have learned alot
I’ve never heard of schist forming from granite. Granite becomes gneiss under pressure and temperature. It is usually mudstones that change into shale, then slate,, then schist…This is what I am aware of anyhow!
Yes, you are correct. I made a mistake on the video.
Yes, however, from what I have seen granite CAN be a parent rock of gneiss, just not shist.
Great videos by the way, keep them up!
That was very educational , rocks tell so much history it blows your mind sometimes👍
That's what I love about geology. A young boy once said to me that they were like "mini time machines." He was right. If you know what they are and how they form, it's like going back in time hundreds of millions of years.
Very good teaching geology video... keep it going...
Thank you, Douglas.
Molto belle queste pietre
I found some weird rocks, in Landers, CA, where I visited last month.
I had uploaded the video, two kinds of rocks are shown in it.
First rocks had weird protrusions (nubs?) like the ones found in so called megalithic walls of Inca and Egypt.
Second rock type, definitely volcanic, had a string of harder rocks arranged in linear fashion.
Some had CROSS shape... linear was weird enough, but cross arrangement?
How is that possible?
Have you seen this kind of rock formation?
What are they called?
Please take a look, I thought they were andesites, but I could be wrong.
Thanks,
Very strange. Definitely igneous rocks. Uneven mixing of the chemicals in the magma creates slight differences in hardness in the rock as the magma cools. Over time, the weaker areas weather and erode more than the harder areas. So my guess is that what looks like inclusions is probably just the result of uneven weathering.
thank you sir.
Wow very good job. 👍👍
I know of a 2 ULBs(Unidentified Large Bones) in my yard.
Interesting! Where do you live? Do you know what kind of rocks are most common in your area? I wonder if they're fossils or something more recent.
I wish I could find these types locally all we have is limestone.
Are there many fossils in the limestone? I miss looking for fossils.
Native Americans as well, as old landslides or construction will leave scattered varieties of rock too. When it see these i look for quartz veins
When I clicked on this I thought...BOOORRRIINNNGGG but I stayed and was glad I did. It's actually way more interesting than I anticipated. Thanks for making me not a dumb dumb 👍
So glad this vid taught you something that will be useful to you, So many Video's teach you thing's ( which just take up Brain Space) no cranial flatulence here...lol bah ha ha ha ha.
@@akatripclaymore.9679 I'm not sure if it's 'useful' information for me, don't know if identifying rocks is something I need to know, I got this far in life without knowing 😆maybe a question might pop up on a quiz night 😂 but it's definitely interesting information.
@@akatripclaymore.9679 I get sarcasm, you're just not very good at it..so what do I say back to it? 🤷♀ just be polite 😆
@@akatripclaymore.9679 And my original comment was semi sarcastic too btw
you were right 1st time
🙏 good job 👍
“ Where’s Waldo “ !😊
Great teach 🧐
If there is cole there even if someone put it there. ? In time doesn't diamond's form from cole?
No. They are both carbon but diamonds form deep under extreme heat and pressure. Diamonds are pure carbon, coal is not.
Good ☺️
respect
Is it common or possible for schist with a lot of mica to also contain gold as well?
Gold is not associated with mica, so the amount of mica in the schist is probably not relevant. Gold is often found with quartz, so it might be possible to find some in schist with a high quartz content. I'm assuming, though, that the process of turning the original granite into schist doesn't remove or alter the gold somehow. I'm not a metamorphic geologist, so I don't know for sure, but I don't think that's likely.
There are quartz veins in schist that are gold bearing although not in the schist itself.
@@argonaught5666 Thanks for clarifying. I am correct in assuming that the quartz veins would have formed later, after the schist had already metamorphosed?
@@gsimonel I'm no geologist but yes. I assume the schist was metamorphosed and then a cooling off period. Then an activation of the intrusive broke it and solution worked through those channels and formed gold bearing quartz veins.
Keep in mind, geology includes a lot of conjecture. For instance, the great Boulder batholith in Montana is presumed to have four major events of activity. In the last one the interior was pretty solidified and not much happened there. However, the margins were thinner and that is where things broke up allowing for the intrusion, formation of pigmatite dikes. In these all kinds of rare earths and crystals formed. So I would imagine that these same processes happened in the schist and gniess bodies. Rochester basin out of Twin Bridges Montana is a good example of gold veins in schist. The geologic schools visit it often because it is known as basement rock, some of the oldest on earth.
I live in a area where most all of the rocks are drop rocks
Interesting. Is there much other evidence of glacial activity?
@@gsimonel yes most of Montana’s geology is glacial.
Nice 👍
Imam i ja nekoliko kamenja . Svetlucaju .zanima me sta je i imali vrednost
That is the rock that we always perform in ny
Yes. Many people have noted that New York is full of schist.
👌🙏
Schist happens!
สวัสดีค่ะสีดำมันคืออะไรค่ะ
Hard to say. Could be coal, pyroxene, or maybe even a tourmaline.
Tomha Bokita: If you could describe the appearance of the stone in a little more detail, used in a much better chance of narrowing down the type of stone that you have. You could also use comparisons to describe the appearance and feel. It might also help to consider the place where you found them in nature. For example it could have a homogenous, grainy, porous, flat, glossy, metallic or nearly polished appearance in the places where it breaks; Perhaps there are layers or striations in it. Perhaps it looks like it could have been wood at one time, as coal often does. You may have found it in close proximity to a type of stone that you can identify; that would help to know about. Is the stone smooth on the outside that has been exposed, or rough or flaky or translucent? That’s the sort of thing that might help narrow down the stone about which you were inquiring.
You could also go to your search engine and look for images of black stones to see if you can spot one that looks like yours. The image would likely be associated with a webpage that will give you the name, if it’s not labeled.
And if you live close to a college or university with a geology department, you can always check with somebody there.
I hope this helps. :-)
Google ok.
Glenn are you a geologist?
No. I received a masters degree in geology, but that was many years ago. As someone else pointed out, schist is metamorphosed mudstone, not metamorphosed granite, as I said in the video. A professional geologist would not have made a mistake like that.
❤️❤️❤️❤️❤️🇻🇳🇻🇳🇻🇳❤️
The Canadians want their rocks back....
Well, okay. But we're keeping the geese.
@@gsimonel
Informative video
Thank you for the knowledge
An by the way.....Rock On*
*Pun intended
I have it.
Schist - I thought you were just cussing in German !
Eeeeeeecccchhhh
Schist is mine is not like yours...will maybe i have a large dark big black shiny...hope if you dont mind..but
I have minerals
Prevod
Your video just appeared on my TH-cam feed, as I'm very interested in geology.
1) Your commentary and narration is excellent.
2) The video quality is TERRIBLE. For a couple hundred dollars you can get a cell phone which produce REALLY excellent sharp video. Do us a favour and throw away the phone that produced these videos and buy a better cell phone. Almost any phone over $200 will give you wonderful results, compared to the phone you used.
3) In spite of the bad quality video, I'm going to subscribe, because your commentary is very good! But rock and mineral ID is really dependent on high quality video.
4) Please let us know WHERE you are located! Not a clue anywhere on your "About" tab. Though I guess you are on the eastern part of the USA. Maybe Pennsylvania?