Dimensions: Approximately 1 inch in diameter
Material: Natural Oco Quartz Geode, some with UV-reactive Agate
Finish: Polished face with raw Quartz geode
Origin: Brazil or Uruguay
Oco geodes are hollow, rounded formations lined with sparkling quartz crystals inside, often with an outer shell of agate or chalcedony. The name "Oco," meaning "hollow" in Portuguese, reflects the geode’s unique structure — a natural chamber of crystalline growth created when mineral-rich waters slowly seeped into cavities within volcanic or sedimentary rock.
The polished face showcases the reflective quartz points inside, offering a window into the geode’s inner world, while the raw exterior preserves its natural ruggedness. Some specimens include UV-reactive agate, adding an unexpected glow under ultraviolet light and highlighting the complex mineral layering.
Geologically, these geodes form over millions of years as silica-rich fluids deposit quartz crystals inside voids. Each geode is a tiny time capsule of Earth’s geological processes and a beautiful addition to any crystal collection.
Dimensions: Approximately 1 inch in diameter
Material: Natural Oco Quartz Geode, some with UV-reactive Agate
Finish: Polished face with raw Quartz geode
Origin: Brazil or Uruguay
Oco geodes are hollow, rounded formations lined with sparkling quartz crystals inside, often with an outer shell of agate or chalcedony. The name "Oco," meaning "hollow" in Portuguese, reflects the geode’s unique structure — a natural chamber of crystalline growth created when mineral-rich waters slowly seeped into cavities within volcanic or sedimentary rock.
The polished face showcases the reflective quartz points inside, offering a window into the geode’s inner world, while the raw exterior preserves its natural ruggedness. Some specimens include UV-reactive agate, adding an unexpected glow under ultraviolet light and highlighting the complex mineral layering.
Geologically, these geodes form over millions of years as silica-rich fluids deposit quartz crystals inside voids. Each geode is a tiny time capsule of Earth’s geological processes and a beautiful addition to any crystal collection.
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