TY  - RPRT
TI  - Crystal structure of howlite, Ca2SiB5O9(OH)5
AU  - J.J. Finney
AU  - I. Kumbasar
AU  - J. R. Clark
PY  - 1969
DO  - 10.1007/bf00599589
UR  - https://pubs.usgs.gov/publication/70001768
ID  - 70001768
ER  -