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Counter weight machinery to open a geode
Geode of agate on round brass base. Mexico
Pipe geode of ametyst -30kg- Madagascar
Prism of gabbro from Madagascar (2.1kg) on brass base
Tree branch crystalized by Selenite. Australia
Polished labradorite from Madagascar (3.7kg)
Menilite Opal from Agramon (Spain) in matrix
Sandcalcite aggregate from Hungary, under glass