Pumice and pumicite
By: by James A. Adams
Series: Oregon. State Dept. of Geology and Mineral Industries. GMI short paper -- no. 6; GMI short paper -- no. 6.
Published: 1941
Place of publication: [Portland, Or.]
Language: eng
Subjects: Abrasives; Pumice
Notes: At head of title: State of Oregon. Dept. of Geology and Mineral Industries.