“Fordite” block – Illinois, USADisplayed on a brass base
MINERAL
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Set of 4 minerals on cubes: cubic Pyrite on matrix, optical Calcite, Chalcopyrite, Dodecahedral Pyrite.
Black Tourmaline from Brazil (8.2 kg), black base
Crystal with prehistoric water on brass machinery
Apophyllite on chalcedony under glass (India)
Gypsum from Caresse -France- on brass base
Brazilian agate slice (490g.) on a brass base