A Geoscience Digital Image Library

TitleJaspilite, Ishpeming, Michigan
DescriptionThis rock contains bands of red jasper (quartz), red-brown hematite, and occasional thin bands of specular hematite. Veinlets of milky quartz criss-cross the rock but are hard to see in hand specimen. This specimen, from part of the Negaunee Iron Formation, is 9.5 cm across.
LithostratigraphyNegaunee Iron Formation
LocationUSA ▹ Michigan. Near Ishpeming.
PhotographerMike Davis. 2001-04-26.
CollectionWard’s University Rock Collection #99.
Key wordsjaspilite, Michigan, Negaunee
Tech details729 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera, 60mm Nikon AF micro lens.
GeoDIL number411