Slice of amethyst geode bordered with agate, black base
MINERAL
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Pink quartz obelisk (9.8kg) on brass base, from Madagascar
Prism of gabbro from Madagascar (6.2kg) on brass base
Polished green malachite (1.5Kg) on brass base
Brazilian agate slice (1.1kg) on brass base
Crystalized branch with gypsum under glass (Wahpool lake, Australia)