Check the listing for details. Beautiful Dufrenoysite Lengenbach Quarry specimen. Condition: Used. Listed at 85.00 USD. The Dufrenoysite Lengenbach Quarry specimen is a rare and unique mineral collectible originating from the Lengenbach Quarry in Switzerland. Known for its beautiful and unique color patterns, this specimen is sought after by collectors and enthusiasts of crystals and mineral specimens. Its distinct characteristics make it a valuable addition to any collection, showcasing the natural beauty and rarity of the mineral world.