Counter weight machinery to open a geode
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Slice of malachite in brass adjustable round stand
Pipe geode of ametyst -30kg- Madagascar
Serie of 12 Agate slices on black cubic stands
Fluorite -Marienschacht Mine , Wölsendorf, , Germany-
Aragonite crusted pipe from Karlovy Vary
Set of 3 Menilite opals from spain on mini-cube
Prism of gabbro from Madagascar (2.1kg) on brass base