Varisite Visible Spectra (300 - 1000 nm)
Image of the varisite, AlPO4·2H2O, absorption
spectrum, 4 K; transmission
spectrum through deep green, polycrystalline, moderately turbid
from Farifield, Utah, USA. Plotted as 0.60 mm
thick. The deep
green color of this material comes from predominantly V3+.
23 K. Variscite
picture, 13 K.
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