Fluorite on Dolomite #fluorite #dolomite #minerals #crystals #rocks #geology #lisbon #museugeologico (at Museu Geológico de Lisboa)
Pyrite cubes #pyrite #minerals #crystals #rocks #geology #lisbon #museugeologico (at Museu Geológico de Lisboa)
Smokey quartz #quartz #minerals #crystals #rocks #geology #Lisbon #museugeologico (at Museu Geológico de Lisboa)
Autunite (uranium-bearing) with smoky quartz inclusions #autunite #uranium #quartz #minerals #crystals #rocks #geology #Lisbon #museugeologico (at Museu Geológico de Lisboa)
#amethyst #geode #quartz #minerals #crystals #rocks #geology #lisbon #museugeologico (at Museu Geológico de Lisboa)