Why is All Sand the Same?

Sand, whether you use it for building sand castles, telling time with an hourglass, or hydraulic fracturing, is pretty much the same just about anywhere you go -- an uncountable number of tiny grains mixed together to form the same dunes and beaches. But why does sand almost always look the same?

Note: "ortoclase" at 0:59 should be "orthoclase"

CREDITS
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Created by Henry Reich
Video Concept and Writing: Meg Rosenburg
Writing and Editing Team: Alex Reich, Peter Reich, Emily Elert
Animation: Ever Salazar
Music: Nathaniel Schroeder

MinuteEarth is produced by Neptune Studios LLC
https://neptunestudios.info  

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REFERENCES
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Assallay, A. M., Rogers, C. D. F., Smalley, I. J., & Jefferson, I. F. 1998. Silt: 2--62 μm, 9--4φ. Earth-Science Reviews 45(1): 61-88. http://www.sciencedirect.com/science/...

Bruce Wilkinson, Geology Professor, Syracuse University (personal communication)

Krinsley, D. H., & Smalley, I. J. 1972. Sand: The study of quartz sand in sediments provides much information about ancient geological environments. American Scientist 60(3): 286-291. http://www.jstor.org/discover/10.2307...

IMAGE CREDITS
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Sand from Gobi Desert http://en.wikipedia.org/wiki/File:San... Photo by: Siim Sepp

Ruler http://commons.wikimedia.org/wiki/Fil... Image by: Dnu72

Black Sand Beach: http://www.flickr.com/photos/scottiet... Photo by: ScottieT812

Red Sand Beach: http://commons.wikimedia.org/wiki/Fil... Photo by: Tom Walsh

White Sand Beach: http://www.flickr.com/photos/diueine/... Photo by: Diueine Monteiro

Dunes: http://www.flickr.com/photos/davidsta... Photo by: David Stanley

Sand Mining http://commons.wikimedia.org/wiki/Fil... by: Aktron / Wikimedia Commons

Beach Photos: Photo by: Myrabella / Wikimedia Commons http://commons.wikimedia.org/wiki/Fil...

Photo by: José Porras http://commons.wikimedia.org/wiki/Fil...

Photo by: Viscious81 / Wikimedia Commons http://commons.wikimedia.org/wiki/Fil...

Photo by: Myrabella / Wikimedia Commons http://commons.wikimedia.org/wiki/Fil...

Photo by: Sengkang http://commons.wikimedia.org/wiki/Fil...

Photo by: Sean O'Flaherty http://commons.wikimedia.org/wiki/Fil...

Photo by: Ayaita http://commons.wikimedia.org/wiki/Fil...

Photo by: Peter V. Sanchez http://commons.wikimedia.org/wiki/Fil...

Photo by: Allan Patrick http://commons.wikimedia.org/wiki/Fil...

Photo by: cogito ergo imago http://www.flickr.com/photos/37244380...

Photo by: Wicho 2 http://commons.wikimedia.org/wiki/Fil...

Photo by: Herbert Vieira http://commons.wikimedia.org/wiki/Fil...

Photo by: Urville86 http://commons.wikimedia.org/wiki/Fil...

Photo by: Angelo Juan Ramos http://commons.wikimedia.org/wiki/Fil...

Photo by: Magnus Manske http://commons.wikimedia.org/wiki/Fil...

Photo by: Daniel Schwen http://commons.wikimedia.org/wiki/Fil...

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