Black Tourmaline from Brazil (8.2 kg), black base
MINERAL
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Blue Fluorite (450g) from Montroc (Tarn - France) in a collector’s box
Boulder Opal (two parts) of 535g on brass base -Australia-
Set of 4 minerals on cubes: cubic Pyrite on matrix, optical Calcite, Chalcopyrite, Dodecahedral Pyrite.