Sogdianite Visible Spectra (350 - 1000 nm)
The sogdianite absorption spectrum
- Vivid Purple 200310369;
from the
Wessels Mine in the Manganese fields in Hotazel, Northern Cape, South
Africa., 3.28 mm thick sample. The color of
this material
comes largely from manganese ions. Contributed data from Kaylan Khourie,
Gemmology Department E.G.L., Johannesburg South Africa. Data
File: unpolarized
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