A Geoscience Digital Image Library

TitleGraphite in weathered schist
DescriptionThis sample of weathered schist (13 cm wide) contains a lot of graphite; the gray patch just right of the center is nearly 100% graphite. Graphite is a soft, crystalline form of native carbon. It is gray to black, opaque, and has a metallic luster. It is flexible but not elastic and its platy habit means it aligns with mica in this rock. Graphite occurs naturally in metamorphic rocks such as marble, schist (this sample), and gneiss.
LocationUSA ▹ Minnesota
PhotographerDarla Sondrol. 2001-06-27.
CollectionUniversity of North Dakota Mineralogy Collection #50.
Key wordsgraphite, schist, Minnesota
Tech details859 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number906