TY  - RPRT
TI  - Esperanzaite, NaCa2Al2 (As(5+)O4)2F4(OH)2H2O, a new mineral species from the La Esperanza Mine, Mexico; descriptive mineralogy and atomic arrangement
AU  - E.E. Foord
AU  - J.M. Hughes
AU  - F. Cureton
AU  - C. H. Maxwell
AU  - A.U. Falster
AU  - A.J. Sommer
AU  - P.F. Hlava
PY  - 1999
UR  - https://pubs.usgs.gov/publication/70021871
ID  - 70021871
ER  -