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dieselbe wie Quarz
Description: Ammonite cut and polished to reveal the inner chambers
brittle stars and sea urchins
Der Querschnitt zeigt glänzende Pyrit- und Calcitadern
aus dem Jura mit einem Großteil der Schale noch intakt und einer bemerkenswerten Erhaltung auf der gesamten Oberfläche
PREIS AUF ANFRAGE | Kristallquarzkugel | Brasilien Fine minerals dieselbe wie QuarzPrice on request: info@urweltsteinbruch. de or +49 (0) 7023 2991 Origin: Brazil Size: D31cm Description: Ground, polished and mounted 42 kg quartz sphere. Additional Information: Quartz, a common mineral composed primarily of silica or silicon dioxide (SiO2). Minor impurities such as lithium, sodium, potassium and titanium may be present. Quartz has attracted attention since the earliest times; water clear crystals were known to the ancient Greeks as
