Half-geode of septaria (0.9 kg) from Poland, in a vertical circular stand
MINERAL
Active filters
Amethyst from Uruguay (600g) in 3D frame
Geode of agate on round brass base. Mexico
Gypsum crystal from France, 57cm on brass base
Utah Septaria Slice - Muddy Creek - USA, in brass adjustable round stand
Purple Botryoidal chalcedony from Sulawesi
Madagascar green opa 925Gr.l, brass base
Sandcalcite aggregate from Hungary, under glass