TY  - RPRT
TI  - Computerized database of the optical properties of the opaque minerals [Compiled from "Tables for microscope identification of Ore minerals", by Uytenbogaardt and Burke]
AU  - Joseph F. Whelan
PY  - 1988
DO  - 10.3133/ofr88260a
UR  - https://pubs.usgs.gov/publication/ofr88260A
ID  - ofr88260A
ER  -