Counter weight machinery to open a geode
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1.8kg Uruguay glossy Agate geode, on brass base
Pipe geode of ametyst -30kg- Madagascar
Serie of 12 Agate slices on black cubic stands
Purple Botryoidal chalcedony from Sulawesi
Gypsum crystal from France, 57cm on brass base
Polished labradorite from Madagascar (3.7kg)
Menilite Opal from Agramon (Spain) in matrix
Prism of gabbro from Madagascar (2.1kg) on brass base