Thornasite : (Na,K)12Th3[Si8O19]4·18H2O
Mindat locality:
Photo added to mindat.org
“Beige to brown crystals, parallel prismatic, of thornasite, in a vug. Fluoresces bright green in UV LW. Collection and photo of Gianfranco Ciccolini. Nikon D750, bellows, Luminar 16 mm.”
Gianfranco Ciccolini - 5th March 2019
Photo added to mindat.org
“Beige to brown crystals, parallel prismatic, of thornasite, in a vug. Fluoresces bright green in UV LW. Collection and photo of Gianfranco Ciccolini. Nikon D750, bellows, Luminar 16 mm.”
Gianfranco Ciccolini - 5th March 2019
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