Blue Biggs Jasper stone. Blue Biggs Jasper is a silicated volcanic ash. It was formed during a volcanic eruption and is part of a Miocene series of ro

---

Blue Biggs Jasper stone. Blue Biggs Jasper is a silicated volcanic ash. It was formed during a volcanic eruption and is part of a Miocene series of rocks called the John Day Formation, near Biggs, Oregon, USA. It is a decorative stone used for jewellery and trinkets.

---

Size: 3780px × 4743px
Photo credit: © DIRK WIERSMA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: american, ash, biggs, blue, close-, day, decorative, detail, earth, formation, gem, gemstone, geological, geology, jasper, john, mineral, mineralogy, minerals, miocene, polished, rock, rocks, sample, science, silicated, specimen, stone, usa, volcanic