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Learn More About Oregon's Geology
Gems and Minerals in Oregon
Agates and Jasper
These semiprecious gemstones can be collected at many sites along the Oregon coast, including Agate Beach at Newport, in some of the streams draining the Western Cascade, near the town of Antelope and around Prineville in central Oregon, near Hart Mountain and Lakeview in south-central Oregon, and at Succor Creek in southeastern Oregon.
jasper   jasper
Agate and jasper are part of the chalcedony family, a variety of quartz. Distinctly banded specimens that differ in color and in degree of translucency are called agate; and mottled yellow, red, brown or green chalcedony is called jasper.