Agate from Poland (Kraszowice Gravel Pit) 140 mm – Polished Half – Lower Silesia

A natural, rare agate from Polish deposits at the Kraszowice gravel pit (Bóbr River valley, Lower Silesia). The specimen is in the form of a half-cut—one side has been carefully cut and polished to a high gloss, revealing the agate’s distinct ribbon-like pattern and the rich mineralization of its interior. The outer edge has retained its raw character as a river pebble, slightly smoothed by water. This specimen is an excellent, representative piece for enthusiasts of Polish minerals and collectors of Lower Silesian agates. This offer applies to the specific specimen shown in the photos.

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Full description

Polish Agate from Lower Silesia – Polished Half from Kraszowice

We present a specimen of natural agate originating from the gravel pit deposits in Kraszowice (Bóbr River valley, Lower Silesia). The specimen has been cut and professionally polished on one side, allowing you to fully admire the internal structure of the quartz and chalcedony. The outer layer of the agate retains the characteristic texture of a river pebble shaped by the river’s current.

Key product information:

✓ Stone: Agate (polished half / river pebble)
✓ Location: Kraszowice (Bóbr River valley), Lower Silesia, Poland
✓ Sedimentary origin: Gravel pit, river transport
✓ Finish: Front face flat-polished to a high gloss
✓ Dimensions: approx. 140 x 65 x 50 mm
✓ Weight: 510 g
✓ Availability: One-of-a-kind specimen (you are purchasing the exact specimen shown in the photos)

Geological characterization of specimens from the Bóbr River Valley

Agates from Lower Silesian gravel pits are naturally formed agate almonds that, over thousands of years, have been washed out of their parent rocks and transported by river waters. Thanks to this process, the outer layer of the rock was naturally polished away, revealing a durable quartz structure. The mirror-like polish of the surface reveals characteristic chalcedony banding, zonal patterns, and subtle tonal transitions. This is an excellent example of the microstructure of crystallized silica from regional deposits.

Collectible Value

The specimen’s massive base and thickness make this half an exceptionally stable display piece that looks superb on shelves, in display cases, or on special stands. Due to its precisely documented Polish provenance, this specimen is an exceptionally attractive addition for collectors of domestic minerals and researchers of the geology of the Sudetes and their foothills.

Purchase Information

The item for sale is exactly this specimen of agate from Kraszowice, as shown in the attached photos. You are purchasing a unique geological specimen ready to be added to your collection.

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