#DISTRIBUTEDBY=Aerosol Refractive Index Archive (www.atm.ox.ac.uk/project/RI/)
#DESCRIPTION=Ash El Chich&oacute;n, sample at 80 km,
## 30 % feldspar,
## 65 % volcanic glass 
## 5 % colored minerals (primarily botite, hornblende and some apatite)
#SUBSTANCE=El Chich&oacute;n Ash
#SAMPLEFORM=Solid
#TEMPERATURE=
#CONCENTRATION=
#DOI=10.1029/gl010i004p00317
#REFERENCE=Edward M. Patterson, C.O. Pollard, Optical properties of the ash
## from El Chich&oacute;n volcano, Geophysical Research Letters, 10, 4,
## 317-320, April 1983.
#CONTACT=
#COMMENT=Digitised from publication graph, absolute accuracy is unknown.
#FORMAT=WAVL K
      0.30144932    0.0033064601
      0.32246322    0.0024288299
      0.35209794    0.0016518401
      0.40036497    0.0011616300
      0.45217393    0.0011373500
      0.50209795    0.0010083100
      0.54965034   0.00097636099
      0.60143887   0.00079250801
      0.63453205   0.00082875998
      0.65106381   0.00081092201
      0.70143887   0.00079397002