A group of giant quartz crystals – smoky quartz to morion, exhibited in the way it was found in the state of Minas Gerais; the Deleff Collection –Giant Crystals, National Museum of Natural History, Paris.

Giant quartz unque minerals

A group of giant quartz crystals – smoky quartz to morion, exhibited in the way it was found in
the state of Minas Gerais; the Deleff Collection –Giant Crystals, National Museum of Natural History, Paris.