Crawford, G. S.

A compilation of information on the occurrence, properties, and research into the utilization of pumicite in Saskatchewan. - [Regina] 1955. - 34 p. illus., map, diagrs., tables. 26 cm. - Saskatchewan. Dept. of Mineral Resources. Report no. 16 . - Saskatchewan. Department of Mineral Resources. Report no. 16. .

"References": p. 26.

gs 56000336


Pumice.
Pozzuolanas.
Volcanic ash, tuff, etc.

QE194 / .A27 no. 16