Spectrum NIR spectrum of the pellet of anorthite 80 at 298 K Spectrum NIR spectrum of the pellet of anorthite 80 at 273 K Spectrum NIR spectrum of the pellet of anorthite 80 at 223 K Spectrum NIR spectrum of the pellet of anorthite 80 at 148 K Spectrum NIR spectrum of the pellet of anorthite 80 at 178 K Spectrum NIR spectrum of the pellet of anorthite 80 at 223 K Spectrum NIR spectrum of the pellet of anorthite 80 at 273 K Spectrum NIR spectrum of the pellet of anorthite 80 at 298 K

Spectrum NIR spectrum of slice of anorthite 80 at 298 K Spectrum NIR spectrum of slice of anorthite 80 at 273 K Spectrum NIR spectrum of slice of anorthite 80 at 223 K Spectrum NIR spectrum of slice of anorthite 80 at 148 K Spectrum NIR spectrum of slice of anorthite 80 at 178 K Spectrum NIR spectrum of slice of anorthite 80 at 223 K Spectrum NIR spectrum of slice of anorthite 80 at 273 K Spectrum NIR spectrum of slice of anorthite 80 at 298 K