Jasper / Hematite Bookends 2907
Jasper / Hematite Bookends. this set is 6"H x 10.5"W x 2"D and weighs 11.8 lbs.
Commonly known as Jaspilite, these rocks are made of alternating colored layers of red jasper (a variety of quartz) and steel-gray hematite. These specimens are ancient, having formed approximately 2.5 billion years ago. All the "Banded iron formations" or Jaspilite comes from deposits in northern Wisconsin, northern Michigan, and Minnesota.