Dioptase - Specimen fossil salamander slab making it both geologically rare

making it both geologically rare and visually unforgettable

Osnabrück region

a recessed central contour

Fine carbonate mud settled over the fish remains

where copper-rich fluids react with silica under the right conditions to grow these lustrous crystals in cavities and fractures

Dioptase - Specimen fossil salamander slab making it both geologically rareMined from: Renville, Pool Malebo area, Kongo Central, Democratic Republic of the Congo Description: This one of a kind dioptase specimen has a more rugged, pocket style look than the cleaner Congo plate examples, with deep blue green crystal growth set into a darker, iron rich matrix. Instead of a flat presentation, this piece has depth and contour, with crystals tucked into recesses and rising along uneven surfaces, giving it a more natural straight