Set of 4 minerals on cubes: cubic Pyrite on matrix, optical Calcite, Chalcopyrite, Dodecahedral Pyrite.
The Unclassifiables
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Polished Pinolite from Austria -700gr-
Polished ketonite (665g), black base
Polished ketonite (975g), black base
“Fordite” block – Illinois, USADisplayed on a brass base
“Jeepite” block – Ohio, USADisplayed on brass base