Half-geode of septaria (0.9 kg) from Poland, in a vertical circular stand
MINERAL
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Open Amethyst Geode from Brazil (11Kg), black base
Agate slice from Brazil (1.4kg.) on black base
Amethyst from Uruguay (600g) in 3D frame
Utah Septaria Slice - Muddy Creek - USA, in brass adjustable round stand
Metallic galena - Khrushchev Mine (Bulgaria) 6.6 Kg
Pipe geode of ametyst -30kg- Madagascar
Cubic Pyrite in slate - St Créac (France)
Counter weight machinery to open a geode