Orthopinakiolite Visible Spectra (300 - 1600 nm)
Image of the orthopinakiolite absorption spectrum
GRR 354 spectrum;
from Langban, Sweden. Plotted as 0.013 mm thick.
The black color of this mineral, when thick, comes from Mn3+ and possibly the Mn2+
- Mn3+ intervalence charge transfer. The quality
of this data is moderate.
Data Files: Not Available: E|| alpha'; E||
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