All The Types of Sand & Why There's So Many Colors! | GEO GIRL

Sand is a grain size, which means it can be many different compositions and therefore, colors! In this video, I talk about all the different types or compositions of sand in beaches and deserts. Common sand types include quartz sand made from eroded granite, arkose sand made from eroded granite that has traveled less far than quartz sand, black sand made from eroded basalt, rare olivine sand made from eroded olivine containing ultramafic rocks, carbonate sand which includes carbonate coated grains called ooids, foraminifera shells, coral fragments, and parrotfish poop, and gysum sand made from the erosion and transport of gypsum from a proximal playa lake in which evaporation led to the precipitation of gypsum from solution, such as White Sands National Park in New Mexico and its proximal Alkaline Flat and Lake Lucero sources. I also discuss other sand types, such as 'human' sand made mainly from plastic that accumulates and breaks down on beaches, 'snow' sand, hematite sand, garnet sand, etc. I close out the video by discussing the uses of sand, not only how humans use sand, but also how animals use sand! :D

References:
https://www.sandatlas.org/sand-types/
https://en.wikipedia.org/wiki/Sand
[4] https://www.overtureglobal.io/story/t...
[16] https://web.archive.org/web/202107021...
[17] https://books.google.com/books/about/...
https://en.wikipedia.org/wiki/Black_sand
Carbonate petrology textbook: https://amzn.to/3Y5aT5k
https://en.wikipedia.org/wiki/Ooid
https://en.wikipedia.org/wiki/Foramin...
https://www.newsweek.com/where-does-s...
https://www.smithsonianmag.com/scienc...
https://www.livescience.com/63627-puf...

0:00 Outline
0:36 What is Sand?
1:39 Sand Sources
3:05 Desert Sand Deposition
3:45 Beach Sand Deposition
4:40 Types of Sand
6:56 Quartz sand
8:50 Black Sand
10:35 Ooid Sand
12:43 Foraminifera Sand
13:52 Parrotfish Poop Sand
14:48 Gypsum Sand
16:33 Olivine Sand
17:39 Plastic Sand
18:58 Honorable Mentions
20:12 Human Sand Uses
22:16 Wildlife Sand Uses

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