Blue chalcedony slab (Brazil) 2.5 kg displayed on a brass base
MINERAL
Active filters
Purple Fluorite, large cube 895 gr., from Morocco in UV Cage
Meteorite (159g) from Sikhote Alin (Siberia), levitating in a brass circle
Pink Manganocalcite from Bulgaria in UV Cage
Fluorescent Sicilian Aragonite in a UV display (Mine Giumentaro)