Helvite Series Visible Spectra (380 - 1100 nm)
Helvite, Be3Mn2+4(SiO4)3S,
Image of the Helvite absorption spectrum
- CIT
12885 spectrum; Helvite from
the Hot Spot Mine, Iron Mtn, Sierra Co, New Mexico. This is an orange-brown
0.278 mm thick sample. The color is from its manganese content. Data
File: 20K;
Literature Data
- Swedish Natural History Museum 530965 spectrum;
Helvite from Brevig, Langesundsfjord, Norway. Scanned from Halenius
(2011) Peridiodico di Mineralogia 80, p105. The spectrum is mostly from
Mn2+ in the tetrahedral site.
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upgraded 6-July-2022
0.278 mm thick sample. The color is from its manganese content. Data
File: 20K;