Minnesota's mineral heritage
By: by George A. Thiel
Contributors: Minnesota. Department of Conservation
Series: Conservation bulletin / Minnesota. Dep. of Conservation -- no. 12; Conservation bulletin (Minnesota. Department of Conservation) -- no. 12
Publisher: Minnesota Department of Conservation
Published: 1947
Place of publication: St. Paul, Minn
Language: eng
Number of pages: 41
Subjects: Mines and mineral resources