In the 1980ies the “Setz-Quarry” at the Kloppberg-Mountain between Kastel and Nonnweiler offered fine findings of vein-agate. Several characteristics are distinctive for agates from this meanwhile “classic” location:
- the shape of the vein-agates oblong stretched, very rarely branches out or brekkziated developed (in the opposite to Steinbach).
- we find temporally different successions of agate formations beginning from the Salband.
Brownish ferric oxides and Chalcedony formations (reminding “brokat”-like pattern) are a further characteristic. Into the space in between of these formation smaller agate systems are developed.
- sulfides are only in few places (Markasite). They were formed similarly as the Chalcedony from a colloid.
- Porcelain-agates were to be found in the upper ranges of the quarry.
- only a few specimen of amethyste and morion (black smoky quartz) could have been found.