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A one-of-a-kind 18-ounce fossiliferous sandstone riverbed specimen featuring visible fossil impressions and fragments preserved throughout the natural brown sandstone matrix.
Under direct ultraviolet light, portions of the specimen produce a striking purple-blue fluorescence, likely associated with fluorescent mineral cement or calcite-rich material within the rock. The UV response is natural and is shown in the listing photographs.
The specimen has been left in its natural river-worn form, with textured surfaces, rounded edges, cavities, and varied fossil detail. Fossil identification is offered conservatively from visual examination; the visible forms may represent shell or brachiopod-like marine fossils and should not be treated as a laboratory-confirmed species identification.
Curated by The Hidden Bazaar for collectors of unusual fossils, fluorescent minerals, and natural-history specimens.
SPECIMEN DETAILS
- Material: Fossiliferous sandstone
- Collection context: Riverbed specimen
- Weight: 18 ounces
- Fluorescence: Purple-blue under direct UV light
- Fossil content: Visible fossil impressions and fragments; exact identification undetermined
- Finish: Natural, unpolished surface
- Condition: Natural pits, cavities, inclusions, weathering, and surface variations present
- Approximate geological age: Exact age and formation period cannot be confirmed without a documented locality; fossil-bearing sandstone commonly represents deposits tens to hundreds of millions of years old
Care: Keep dry and handle carefully. Use UV light responsibly and never look directly into the beam.
