Counter weight machinery to open a geode
MINERAL
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Smoky quartz (1.5Kg) with recrystallization (Brazil), presented in a cage
Pipe geode of ametyst -30kg- Madagascar
Serie of 12 Agate slices on black cubic stands
Pair of two-tone lepidolite mica slices, from Brazil; black base
Prism of gabbro from Madagascar (2.1kg) on brass base