Half-geode of septaria (0.9 kg) from Poland, in a vertical circular stand
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Slice of malachite in brass adjustable round stand
Utah Septaria Slice - Muddy Creek - USA, in brass adjustable round stand
Round septaria from Madagascar on black base
Serie of 12 Agate slices on black cubic stands
Aragonite crusted pipe from Karlovy Vary
Amethyst from Uruguay (600g) in 3D frame
Prism of gabbro from Madagascar (2.1kg) on brass base