Latest / PlanetGeo: The Geology Podcast
The Viral Cookie Monster Agate and How Agates Form (GeoShort)
Have you seen the viral "cookie monster agate"? If not, check it out via the link below (or our instagram: @planetgeocast)!
Both Chris and Jesse have had this viral agate image shared with them, and today we discuss how agates are formed, and how the represent a really cool and important geologic process; fluid flow!
Agate is a form of microcrystalline silica (like quartz) that often forms from super-saturated fluid. These fluids flow through many parts of the Earth's crust, including through small gaps or cavities in volcanic or sedimentary rocks. The super saturated fluids will deposit…
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