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Hope you guys enjoyed learning about giant rock concretions as much as I did! :D

Note: the mention of the agate & geode video is referring to a future video (I do not yet have a video about this on my channel yet, but I plan to make one!)

References:
Article on spherical carbonate concretion formation: https://phys.org/news/2018-05-formati...
Moqui marbles: https://www.livescience.com/47936-how...
More on moqui marbles: https://geology.utah.gov/map-pub/surv...

0:00 Where to Find Rock Balls
1:24 Valley of The Moon
2:04 Torysh Valley
2:36 What Are These Rock Balls?
4:30 How Do These Rock Balls Form?
9:16 Rock Balls vs. Geodes
10:26 How Rock Balls Grow Underground!
16:52 Fe Rock Balls in Utah
18:03 Martian Blueberries

GEO GIRL Website: https://www.geogirlscience.com/ (visit my website to see all my courses, shop merch, learn more about me, & donate to support the channel if you'd like!)

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Oxygen by D. Canfield: https://amzn.to/3gffbCL
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Alien Oceans by K. Hand: https://amzn.to/3clMx1l
Life's Engines: https://amzn.to/3w1Nhke

Tools I use as a geologist/teacher/student:
Geology field notebook: https://amzn.to/3lb6dJf
Geology rock hammer: https://amzn.to/3DZw8MA
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Carbon-neutral pencil bag: https://shrsl.com/3cvjv
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Disclaimer: Links included in this description might be affiliate links. If you purchase a product or service with the links that I provide I may receive a small commission, but there is no additional charge to you! Thank you for supporting my channel so I can continue to provide you with free content each week! And as always, let me know your topic suggestions in the comments down below!

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