A Geoscience Digital Image Library

TitleAmphibolite, Soudan Mine, Minnesota
DescriptionThis rock contains mostly hornblende and plagioclase, with lesser amounts of biotite. However, the minerals are very hard to identify in hand specimen because the grain size is too small. This sample is 10 cm across.
LocationUSA ▹ Minnesota. Near Soudan. Minnesota's Iron Range.
PhotographerNessa Eull. 2001-04-26.
CollectionWard’s University Rock Collection #195.
Key wordsamphibolite, Minnesota, Soudan Mine
Tech details679 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera, 60mm Nikon AF micro lens.
GeoDIL number433