Counter weight machinery to open a geode
MINERAL
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Pipe geode of ametyst -30kg- Madagascar
Prism of gabbro from Madagascar (2.1kg) on brass base
Labradorite slab (Madagascar)3.8 kg – displayed on a black base
Polished labradorite from Madagascar (3.7kg)
Menilite Opal from Agramon (Spain) in matrix
