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Counter weight machinery to open a geode
Serie of 7 golden agate slices on brass cubic stand
Pyrite cubic- dodecaedre- of Peru, in glass ball
Gypsum from France (200g.) on black base
Pipe geode of ametyst -30kg- Madagascar
Prism of gabbro from Madagascar (2.1kg) on brass base
Natural fiber malachite (780Gr) under glass ball
Scolecite crystal in glass display box
Serie of 12 Agate slices on black cubic stands
Purpurite from Brazil (800g), under glass ball
Arkansas black quartz cluster in glass ball