Pink quartz obelisk (9.8kg) on brass base, from Madagascar
MINERAL
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Prism of gabbro from Madagascar (6.2kg) on brass base
Half agate geode (Brazil)2.5 kg – displayed on a brass base
Gypsum crystal from France, 57cm on brass base
Chryzoprase in matrix of Tanzania on brass stand
Ball of rhodonite from Madagascar (6.1kg) on brass base