Genthelvite Visible Spectra (380 - 1100 nm)
- CIT 9305 spectrum VIS
region, 0.5 mm thick; NIR
region, 0.090 mm thick
Genthelvite from Diamond Hill, Rhode Island, USA. This is a pink crystal.
The visible region spectrum was taken on a 0.342 mm thick slab and
plotted as 0.5 mm. Data File: 26K.
The NIR region was taken on a 0.090 mm thick slab and plotted as 0.090
mm. The color is from the iron content, but weak Mn2+
features can also
been seen in the spectrum.