Your search returned 2 results.

Results
	1.	No cover image available Iron ores of Minnesota their geology, discovery, development, qualities and origin, and comparison with those of other iron districts by Winchell, Newton Horace Winchell, Horace Vaughn Geological and Natural History Survey (Minnesota) Series: Geological and Natural History Survey of Minnesota bulletin ; 6 Material type: Article Publisher: Harrison & Smith 1891 Minneapolis Availability: Items available for loan: Mineralogisch-Petrographische Abteilung (2).
	2.	No cover image available Elements of optical mineralogy an introduction to microscopic petrography part I: principles and methods part II: description of minerals by Winchell, Newton Horace Edition: 2nd ed. Material type: Article Publisher: Wiley 1922 u. 1927 New York Availability: Items available for loan: Mineralogisch-Petrographische Abteilung (2).

Not finding what you're looking for?

Refine your search