Thorite Visible Spectra (400 - 1100 nm)
Image of the thorite absorption spectrum
Thorite spectrum, 4K;
from sanidine volcanic ejecta near Castellaccio di Petrignano, Vitergo Provence, Lazino region, Italy. Estimated thickness, 200 micrometers. The green color of this material is due to U
4+
. Data Files:
E||a 0K;
E||c 0K;
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