Iron and Nickel Meteorites Identified
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- čas přidán 8. 10. 2022
- This is a survey of meteorites covered on the GeologyDude CZcams channel. These are iron and nickel octahedrite meteorites that typically date at about 4.5 billion years old. Iron and nickel meteorites have Widmanstässen structures, and are magnetic. Note that one sample here has been cut--but not etched by acid--to reveal the Widmanstässen structures inside. While traveling through Earth's atmosphere, a baked fusion crust will form on the surface of most meteorites--including pits and undulations. Because the meteorite became exposed to weathering, a little reddish-brown rust can be seen within some of the pits on some meteorites. There is also a tektite featured on this video.
If you want more information and details about these meteorites, check out the meteorite videos on GeologyDude!
The meteorites featured on this video are as follows:
Odessa meteorite (Texas)
Brenham meteorite (Kansas)
Muonionalusta meteorite (Sweden)
Campo del Ceilo, (Argentina)
Mantan meteorite (China)
Canyon Diablo (Arizona)
Notes:
--The tektite is from Canyon Diablo (Arizona).
--The Willamette Meteorite, is in another video featured on GeologyDude (although that video was posted after this video was posted).
Hello Rock People! This is Dave the Geology Dude. Identification notes are below in this text. Note that I have other videos that provide more rock identification information on my CZcams channel. It is best to try to see many examples of the same rock type (or meteorite type)--because only then you understand the range of variables that can be associated with each rock type. Also, be aware that the only way to really learn rock identification, is to have hands-on experience. This is because visual experiences alone do not show the physical properties like hardness, acid reactivity, and the range of variables that are common to each rock type. Don't forget that: Geology isn't Rocket Science--it's Rock Science! Please "like" and subscribe to this CZcams channel!
Music (CZcams Audio Library): Island Dream (by Chris Haugen)
Copyright by David Knoblach, 2022. All rights reserved (please contact me for permission to use).
Hello Rock People! This is Dave the Geology Dude! There is more to this video than just quick views of meteorites. There are detailed notes in the description area for this video. If you want more, longer length videos are on my CZcams homepage. Check them out, or leave a comment here!
The Muonionalusta was my favorite. Meteorites are one rock type I’ve never looked into much until watching your videos. I was unaware on a lot of the things you’ve mentioned. I need to remember to not only study rocks from our planet.
Fortunately I have a friend that let me take pictures of her meteorite collection. I have only one myself. Meteorites are very difficult in photogrammetry too. They are too dark, too reflective and too metallic (if polished), and too thin if cut into slabs.
I know common sense tells me , if I see a construction zone and a huge pile black rocks, it's basalt mixed with slag , most likely. But its hard to say what's what.
It depends on where you live--regarding basalt or slag--ha ha. Not every place has basalt or slag. But certainly many places do! Many people believe they are meteorites!