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geode
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geode Amethyst geode from Nova Scotia, Can. A diagram displays illustrations of various common crystal aggregations and habits in minerals, including granular, lamellar, bladed, fibrous, acicular, radiating, dendritic, mammillated, colloform, stalactitic, geode, and oolitic forms, each labeled with mineral examples.
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Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.
(Bed) Rocks and (Flint) Stones

geode: References & Edit History

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Article History

Type Description Contributor Date
Add new Web site: Texas Parks and Wildlife - Young Naturalist - Geodes. Mar 07, 2025
Add new Web site: Mindat.org - Definition of geode. Jun 11, 2024
Add new Web site: Maryville Online - Guide to Geodes. Dec 19, 2023
Add new Web site: Geology.com - Geodes. Oct 05, 2023
Photograph of amethyst geode added. Mar 19, 2010
Media added. Aug 19, 2008
Article added to new online database. Jul 20, 1998
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