A geode (/ ˈdʒiː.oʊd /; from Ancient Greek γεώδης (geṓdēs) 'earthlike') is a geological secondary formation within sedimentary and volcanic rocks. Geodes are hollow, vaguely spherical rocks, …

Jan 12, 2024 · Use our guide to easily identify if a rock is a geode. It's very easy to walk past an unopened geode without realizing it unless you know what to look for.

May 2, 2024 · Geodes are geological formations characterized by their spherical shapes and hollow interiors, often lined with colorful crystals. Derived from the Greek word geoides, which …

Geodes are spherical rock structures with an internal cavity that is often lined with quartz crystals and banded agate. Some are lined with more mundane or spectacular materials.

Mar 5, 2025 · At first glance, a geode seems like a plain, round, and ordinary rock. But once you crack it open, you’ll discover a treasure trove of sparkling crystals inside! It starts as bubbles in …

Apr 27, 2021 · A geode is a hollow rock containing minerals or crystals deposited by mineral-rich water. The word “geode” comes from the Greek word for “Earth-like.” Here is a look at how …

Mar 7, 2025 · Geode, hollow mineral body found in limestones and some shales. The common form is a slightly flattened globe ranging in diameter from 2.5 to more than 30 cm (1 to 12 …

Sep 30, 2021 · What are geodes? Geodes are hollow rocks lined with crystals, often colorful and irregularly shaped. The outer shell of a geode is usually bumpy or rough, and the general …

Apr 3, 2019 · A geode is a Greek word that means the shape of the earth. The name originates from their shape, which is earthlike or oblong (like the shape of an egg). Geodes are …

Geodes are not just rocks; they are snapshots of ancient environments. Their formation, spanning millions of years, captures mineral-rich fluids that infiltrated and crystallized within their hollow …