NoneOpal [SiO2·nH2O]

Units:
References:
Spectrum Line Emitter Position Measurement Technique Temperature Reference
NBOHC 649.0nm CL Götze 2000c
Unspecified 650.0nm CL Ambient Richter et al. 2003
Unspecified 650.0nm CL Ambient Gorobets and Rogojine 2002; Gotze 2000