Brazilian Oco Geode Halves – Set of 3 Collector Specimens
Brazilian Oco Geode Halves – Set of 3 Collector Specimens
★★★★★ Rated 5/5 by collectors
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🦙 From The Andes has been curating rare finds since 1987, family-run in Taos, New Mexico.
At a Glance
• Authentic Brazilian Oco geodes from Tres Pinheiros
• Natural quartz crystal interiors with chalcedony banding
• Three hand selected halves chosen for balance and clarity
• Formed in volcanic basalt over 100 million years ago
• Ideal for décor, gifting, collecting, or healing environments
Origin: Tres Pinheiros, Rio Grande do Sul, Brazil
Material: Chalcedony agate shell with natural quartz crystal interior
Includes: Three hand selected geode halves (our choice)
Dimensions: Approximately 1 to 3 inches each
Weight: Average 35 g per piece, total ~105 g per set
Catalogue Note
Sourced from the volcanic fields of Tres Pinheiros in southern Brazil, these Oco geode halves represent some of the most consistent and collectible examples of quartz lined geodes. Formed more than 100 million years ago within cooling basalt flows, each specimen reveals a natural cavity lined with drusy quartz and encased in concentric chalcedony banding.
Each piece is carefully split and lightly polished to reveal its inner chamber. The curated set of three is selected for shape, tonal contrast, and crystal clarity, making it suitable for display, gifting, or contemplative work. Their compact scale and refined presentation offer an accessible way to experience authentic Brazilian mineral formation.
Styling Notes
Display on a shelf, desk, bedside table, or decorative tray where natural stone adds texture and soft sparkle. The neutral tones and crystalline interiors blend well with ceramics, books, plants, and minimalist décor.
Key Highlights
• Natural quartz crystal with visible drusy formation
• Distinct chalcedony banding created through volcanic mineralization
• Compact, polished presentation ideal for décor or collection sets
• Geologically significant origin with strong collector credibility
FAQ
What are Oco geodes?
Oco geodes are hollow, quartz lined geodes formed within volcanic basalt. They are prized for their drusy interiors and distinct chalcedony banding.
What are the benefits of Oco geodes?
In crystal traditions, they are associated with grounding, clarity, and meditative focus. Their hollow centers are believed to amplify intentions and support energy work.
Where are Oco geodes found?
They originate in the lava fields of Tres Pinheiros in Rio Grande do Sul, Brazil. Once unearthed, they are split to reveal the natural crystal interior.
What is the rarest geode color?
Naturally occurring violet, black, or manganese toned interiors are among the rarest. Oco geodes typically appear in soft neutrals.
How can you tell a fake geode?
Authentic geodes show irregular banding, matte exteriors, and natural drusy cavities. Fakes often display uniform dye, overly glossy finishes, or unnatural symmetry.
Can geodes be valuable?
Yes. Value depends on origin, formation quality, symmetry, and overall aesthetic. Brazilian Oco geodes are respected in both casual and serious mineral collections.
Do geodes hold energy?
Many practitioners believe they absorb, store, and release energy, and can support intention setting or the cleansing of other stones.
