Biggs Jasper Biggs Jasper is a rustic looking gemstone that displays several shades of browns from light to dark almost black, other colors are also found, more on that to follow. Biggs Jasper is called a “Picture Jasper” because of layered patterns, sometimes called shell patterns with variations within the patterns. At the end of the article there are links to publications and rockhounding guides. ( Credit and Thanks to” Molly Stevens Wahr,s” Face book post on our Radical Rocks Facebook Group and her Biggs jasper Cabochons displaying beautiful seins ) Discovery the Biggs jasper was discovered about 1960 near the Biggs Junction, in Oregon. The first samples were collected from the creek near Biggs junction. Sometime later between 1964 & 1966 road cuts were made for Route 97 and interstate 84 due in part to a flood were more deposits were located starting a small supply flow of Biggs Jasper to market by the roadcrews & other collectors that were selling to rock sho...
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