Brazilianite Visible-NIR Spectrum 
Brazililanite would be colorless
if it were purely NaAl3(PO4)2(OH)4
Brazilianite absorption spectrum  
 
  - Brazilianite
CIT-5920 spectrum; from Minas Gerais, Brazil,
The pale yellow color is from minor amounts of iron in the sample. Data
File: unoriented slab.