Agate Stone

Collection by Arya Sheba • Last updated 12 weeks ago

Arya Sheba


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Lake Superior agate with sagenite

Lake Superior

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Funny Weird Agate Specimens You Should See

A Thunder Egg “Thunderegg” is a nodule-like rock, similar to a filled geode, that is formed within rhyolitic volcanic ash layers. Thundereggs are rough spheres, most about the size of a baseball—though they can range from less than an inch to over a meter across.

Coyamito - Frozen Explosion

Nice sagenite formation and pseudomorphs. Too big for my light table.

Superior Eye Agate

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Gallery: Thundereggs

Thundereggs are nodular rhyolitic formations which can have hollow cavities and can contain a star, triangle, or lens shaped interior. These can fill wi...