Half-geode of septaria (0.9 kg) from Poland, in a vertical circular stand
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Utah Septaria Slice - Muddy Creek - USA, in brass adjustable round stand
Brazilian agate geode, on sliding machine
Slice of red jasper from Brazil, on black base
Gypsum crystal from France, 57cm on brass base
Amethyst from Uruguay (600g) in 3D frame
