TY  - RPRT
TI  - Alunite-natroalunite identification using field tests and a computer-plotted overlay for X-ray diffraction charts
AU  - Charles G. Cunningham
PY  - 1976
DO  - 10.3133/ofr76403
UR  - https://pubs.usgs.gov/publication/ofr76403
ID  - ofr76403
ER  -